Sample records for grid osg privileges

  1. Definition and Implementation of a SAML-XAMCL Profile for Authorization Interoperability Across Grid Middleware in OSG and EGEE

    SciTech Connect

    Hover, J.; Garzoglio, G; Alderman, I.; Altunay, M.; Ananthakrishman, R.; Bester, J.; Chadwick, K.; Ciaschini, V.; Demchenko, Y.; Ferraro, A.; Forti, A.; Groep, D.; Hesselroth, T.; Hover, J.; Koeroo, O.; LaJoie, C.; Levshina, T.; Miller, Z.; Packard, J.; Sagehaug, H.; Sergeev, V.; Sfiligoi, I.; Sharma, N.; Siebenlist, F.; Venturi, V.; Weigand, J.

    2009-04-23

    In order to ensure interoperability between middleware and authorization infrastructures used in the Open Science Grid (OSG) and the Enabling Grids for E-science (EGEE) projects, an Authorization Interoperability activity was initiated in 2006. The interoperability goal was met in two phases: firstly, agreeing on a common authorization query interface and protocol with an associated profile that ensures standardized use of attributes and obligations; and secondly implementing, testing, and deploying on OSG and EGEE, middleware that supports the interoperability protocol and profile. The activity has involved people from OSG, EGEE, the Globus Toolkit project, and the Condor project. This paper presents a summary of the agreed-upon protocol, profile and the software components involved.

  2. Definition and implementation of a SAML-XACML profile for authorization interoperability across Grid middleware implementations in OSG and EGEE.

    SciTech Connect

    Alderman, I.; Altunay, M.; Ananthakrishnan, R.; Bester, J.; Chadwick, K.; Ciaschini, V.; Demchenko, Y.; Ferraro, A.; Forti, A.; Garzoglio, G.; Groep, D.; Hesselroth, T.; Hover, J.; Koeroo, O.; La Joie, C.; Levshina, T.; Miller, Z.; Packard, J.; Sagehaug, H.; Sergeev, V.; Sfiligoi, I.; Sharma, N.; Siebenlist, F.; Venturi, V.; Weigand, J.; Mathematics and Computer Science; FNAL; NIKHEF; BNL; Univ. of Amsterdam; SWITCH; BCCS; INFN CNAF; Univ. of Wisconsin at Madison

    2009-09-01

    In order to ensure interoperability between middleware and authorization infrastructures used in the Open Science Grid (OSG) and the Enabling Grids for E-science (EGEE) projects, an Authorization Interoperability activity was initiated in 2006. The interoperability goal was met in two phases: firstly, agreeing on a common authorization query interface and protocol with an associated profile that ensures standardized use of attributes and obligations; and secondly implementing, testing, and deploying on OSG and EGEE, middleware that supports the interoperability protocol and profile. The activity has involved people from OSG, EGEE, the Globus Toolkit project, and the Condor project. This paper presents a summary of the agreed-upon protocol, profile and the software components involved.

  3. SVOPME: A scalable virtual organization privileges management environment

    SciTech Connect

    Garzoglio, Gabriele; /Fermilab; Wang, Nanbor; /Tech-X, Boulder; Sfiligoi, Igor; Levshina, Tanya; /Fermilab; Anathan, Balamurali; /Tech-X, Boulder

    2009-05-01

    Grids enable uniform access to resources by implementing standard interfaces to resource gateways. In the Open Science Grid (OSG), privileges are granted on the basis of the user's membership to a Virtual Organization (VO). However, Grid sites are solely responsible to determine and control access privileges to resources using users identity and personal attributes, which are available through Grid credentials. While this guarantees full control on access rights to the sites, it makes VO privileges heterogeneous throughout the Grid and hardly fits with the Grid paradigm of uniform access to resources. To address these challenges, we are developing the Scalable Virtual Organization Privileges Management Environment (SVOPME), which provides tools for VOs to define and publish desired privileges and assists sites to provide the appropriate access policies. Moreover, SVOPME provides tools for Grid sites to analyze site access policies for various resources, verify compliance with preferred VO policies, and generate directives for site administrators on how the local access policies can be amended to achieve such compliance without taking control of local configurations away from site administrators. This paper discusses what access policies are of interest to the OSG community and how SVOPME implements privilege management for OSG.

  4. College of Dentistry OSG Oral and Maxillofacial Surgery

    E-print Network

    MacAdam, Keith

    College of Dentistry OSG Oral and Maxillofacial Surgery KEY: # = new course * = course changed IN SURGERY. (1) A seminar course for dental graduate students in areas other than surgery, emphasizing or post-doctoral programs of College of Dentistry; D.D.S. or D.M.D. degree. OSG 820 ORAL SURGERY I. (1

  5. New Science on the Open Science Grid

    E-print Network

    Board, The Open Science Grid Executive; Pordes, Ruth; Altunay, Mine; Avery, Paul; Bejan, Alina; Blackburn, Kent; Blatecky, Alan; Gardner, Rob; Kramer, Bill; Livny, Miron; McGee, John; Potekhin, Maxim; Quick, Rob; Olson, Doug; Roy, Alain; Sehgal, Chander; Wenaus, Torre; Wilde, Mike; Wuerthwein, Frank

    2012-01-01

    The Open Science Grid (OSG) includes work to enable new science, new scientists, and new modalities in support of computationally based research. There are frequently significant sociological and organizational changes required in transformation from the existing to the new. OSG leverages its deliverables to the large scale physics experiment member communities to benefit new communities at all scales through activities in education, engagement and the distributed facility. As a partner to the poster and tutorial at SciDAC 2008, this paper gives both a brief general description and some specific examples of new science enabled on the OSG. More information is available at the OSG web site: (http://www.opensciencegrid.org).

  6. FermiGrid

    SciTech Connect

    Yocum, D.R.; Berman, E.; Canal, P.; Chadwick, K.; Hesselroth, T.; Garzoglio, G.; Levshina, T.; Sergeev, V.; Sfiligoi, I.; Sharma, N.; Timm, S.; /Fermilab

    2007-05-01

    As one of the founding members of the Open Science Grid Consortium (OSG), Fermilab enables coherent access to its production resources through the Grid infrastructure system called FermiGrid. This system successfully provides for centrally managed grid services, opportunistic resource access, development of OSG Interfaces for Fermilab, and an interface to the Fermilab dCache system. FermiGrid supports virtual organizations (VOs) including high energy physics experiments (USCMS, MINOS, D0, CDF, ILC), astrophysics experiments (SDSS, Auger, DES), biology experiments (GADU, Nanohub) and educational activities.

  7. The Open Science Grid

    SciTech Connect

    Pordes, Ruth; /Fermilab; Kramer, Bill; Olson, Doug; / /LBL, Berkeley; Livny, Miron; Roy, Alain; /Wisconsin U., Madison; Avery, Paul; /Florida U.; Blackburn, Kent; /Caltech; Wenaus, Torre; /Brookhaven; Wurthwein, Frank; /UC, San Diego; Gardner, Rob; Wilde, Mike; /Chicago U. /Indiana U.

    2007-06-01

    The Open Science Grid (OSG) provides a distributed facility where the Consortium members provide guaranteed and opportunistic access to shared computing and storage resources. OSG provides support for and evolution of the infrastructure through activities that cover operations, security, software, troubleshooting, addition of new capabilities, and support for existing and engagement with new communities. The OSG SciDAC-2 project provides specific activities to manage and evolve the distributed infrastructure and support its use. The innovative aspects of the project are the maintenance and performance of a collaborative (shared & common) petascale national facility over tens of autonomous computing sites, for many hundreds of users, transferring terabytes of data a day, executing tens of thousands of jobs a day, and providing robust and usable resources for scientific groups of all types and sizes. More information can be found at the OSG web site: www.opensciencegrid.org.

  8. Family Privilege

    ERIC Educational Resources Information Center

    Seita, John R.

    2014-01-01

    Family privilege is defined as "strengths and supports gained through primary caring relationships." A generation ago, the typical family included two parents and a bevy of kids living under one roof. Now, every variation of blended caregiving qualifies as family. But over the long arc of human history, a real family was a…

  9. The Open Science Grid status and architecture

    SciTech Connect

    Pordes, Ruth; Petravick, Don; /Fermilab; Kramer, Bill; Olsen, James D.; /LBL, Berkeley; Livny, Miron; Roy, Gordon A.; /Wisconsin U., Madison; Avery, Paul Ralph; /Florida U.; Blackburn, Kent; /Caltech; Wenaus, Torre J.; /Brookhaven; Wuerthwein, Frank K.; /UC, San Diego; Foster, Ian; /Chicago U. /Indiana U.

    2007-09-01

    The Open Science Grid (OSG) provides a distributed facility where the Consortium members provide guaranteed and opportunistic access to shared computing and storage resources. The OSG project[1] is funded by the National Science Foundation and the Department of Energy Scientific Discovery through Advanced Computing program. The OSG project provides specific activities for the operation and evolution of the common infrastructure. The US ATLAS and US CMS collaborations contribute to and depend on OSG as the US infrastructure contributing to the World Wide LHC Computing Grid on which the LHC experiments distribute and analyze their data. Other stakeholders include the STAR RHIC experiment, the Laser Interferometer Gravitational-Wave Observatory (LIGO), the Dark Energy Survey (DES) and several Fermilab Tevatron experiments- CDF, D0, MiniBoone etc. The OSG implementation architecture brings a pragmatic approach to enabling vertically integrated community specific distributed systems over a common horizontal set of shared resources and services. More information can be found at the OSG web site: www.opensciencegrid.org.

  10. The event notification and alarm system for the Open Science Grid operations center

    NASA Astrophysics Data System (ADS)

    Hayashi, S.; Teige and, S.; Quick, R.

    2012-12-01

    The Open Science Grid Operations (OSG) Team operates a distributed set of services and tools that enable the utilization of the OSG by several HEP projects. Without these services users of the OSG would not be able to run jobs, locate resources, obtain information about the status of systems or generally use the OSG. For this reason these services must be highly available. This paper describes the automated monitoring and notification systems used to diagnose and report problems. Described here are the means used by OSG Operations to monitor systems such as physical facilities, network operations, server health, service availability and software error events. Once detected, an error condition generates a message sent to, for example, Email, SMS, Twitter, an Instant Message Server, etc. The mechanism being developed to integrate these monitoring systems into a prioritized and configurable alarming system is emphasized.

  11. Mechanical properties and fracture toughness of organo-silicate glass (OSG) low- k dielectric thin films for microelectronic applications

    Microsoft Academic Search

    J. B. Vella; I. S. Adhihetty; K. Junker; A. A. Volinsky

    2003-01-01

    The integration of chemical vapor deposited organo-silicate glass (OSG) interlayer dielectrics (ILD) has challenged the IC industry to formulate new methods of metrology and characterization. The impact of nanoindentation to understand and screen for integrated circuit failure mechanisms that are mainly predicated upon OSG nano-porosity is discussed. Failure modes include poor mechanical strength, low material stiffness, and brittle fracture due

  12. The open science grid

    SciTech Connect

    Pordes, R.; /Fermilab

    2004-12-01

    The U.S. LHC Tier-1 and Tier-2 laboratories and universities are developing production Grids to support LHC applications running across a worldwide Grid computing system. Together with partners in computer science, physics grid projects and active experiments, we will build a common national production grid infrastructure which is open in its architecture, implementation and use. The Open Science Grid (OSG) model builds upon the successful approach of last year's joint Grid2003 project. The Grid3 shared infrastructure has for over eight months provided significant computational resources and throughput to a range of applications, including ATLAS and CMS data challenges, SDSS, LIGO, and biology analyses, and computer science demonstrators and experiments. To move towards LHC-scale data management, access and analysis capabilities, we must increase the scale, services, and sustainability of the current infrastructure by an order of magnitude or more. Thus, we must achieve a significant upgrade in its functionalities and technologies. The initial OSG partners will build upon a fully usable, sustainable and robust grid. Initial partners include the US LHC collaborations, DOE & NSF Laboratories and Universities & Trillium Grid projects. The approach is to federate with other application communities in the U.S. to build a shared infrastructure open to other sciences and capable of being modified and improved to respond to needs of other applications, including CDF, D0, BaBar, and RHIC experiments. We describe the application-driven, engineered services of the OSG, short term plans and status, and the roadmap for a consortium, its partnerships and national focus.

  13. Towards Automated Privilege Separation

    Microsoft Academic Search

    Dhananjay Bapat; Kevin R. B. Butler; Patrick Drew Mcdaniel

    2007-01-01

    Applications are subject to threat from a number of attack vectors, and limiting their attack surface is vital. By using privilege\\u000a separation to constrain application access to protected resources, we can mitigate the threats against the application. Previous\\u000a examinations of privilege separation either entailed significant manual effort or required access to the source code. We consider\\u000a a method of performing

  14. Data Management in Production Grids - Challenges and Techniques

    Microsoft Academic Search

    Erwin Laure

    2006-01-01

    Summary form only given. Advances in networking and distributed computing allowed the establishment of production grid infrastructures. Today, large-scale production grid infrastructures such as EGEE in Europe, OSG in the US, and NAREGI in Japan are offering their services to many scientific and industrial applications, from domains as diverse as astronomy, biomedicine, computational chemistry, earth sciences, financial simulations, and high

  15. CDF way to the GRID

    NASA Astrophysics Data System (ADS)

    Delli Paoli, F.

    2006-11-01

    The improvements of the peak instantaneous luminosity of the Tevatron Collider require large increases in computing requirements for the CDF experiment which has to be able to increase proportionally the amount of Monte Carlo data it produces and to satisfy the computing needs for future data analysis. This is, in turn, forcing the CDF Collaboration to move beyond the used dedicated resources and start exploiting Grid resources. CDF has been running a set of CDF Analysis Farm (CAFs), which are submission portals to dedicated pools. In this paper will be presented the CDF strategy to access Grid resources. GlideCAF, a new CAF implementation based on Condor Glide-in technology, has been developed to access resources in specific Grid Sites and is currently in production status at CNAF Tier-1 in Italy. Recently have been configured GlideCAFs also in San Diego (US), Fermilab and Lyon Tier-1 Center (France). GlideCAF model has been used also to implement OsgCAF, which is a Fermilab project to exploit OSG resources in US. LcgCAF is basically a reimplementation of the CAF model in order to access Grid resources by using the LCG/EGEE Middleware components in a total standard Grid way. LcgCAF is constituted by a set of services each of them responsible for accepting, submitting and monitoring CDF user jobs during theirs lifetimes in the Grid environment. An overview of the Grid Environment and of the specific Middleware services used will be presented; GlideCAF and LcgCAF implementations will be discussed in detail. Some details on OsgCAF project will be also given.

  16. Public storage for the Open Science Grid

    NASA Astrophysics Data System (ADS)

    Levshina, T.; Guru, A.

    2014-06-01

    The Open Science Grid infrastructure doesn't provide efficient means to manage public storage offered by participating sites. A Virtual Organization that relies on opportunistic storage has difficulties finding appropriate storage, verifying its availability, and monitoring its utilization. The involvement of the production manager, site administrators and VO support personnel is required to allocate or rescind storage space. One of the main requirements for Public Storage implementation is that it should use SRM or GridFTP protocols to access the Storage Elements provided by the OSG Sites and not put any additional burden on sites. By policy, no new services related to Public Storage can be installed and run on OSG sites. Opportunistic users also have difficulties in accessing the OSG Storage Elements during the execution of jobs. A typical users' data management workflow includes pre-staging common data on sites before a job's execution, then storing for a subsequent download to a local institution the output data produced by a job on a worker node. When the amount of data is significant, the only means to temporarily store the data is to upload it to one of the Storage Elements. In order to do that, a user's job should be aware of the storage location, availability, and free space. After a successful data upload, users must somehow keep track of the data's location for future access. In this presentation we propose solutions for storage management and data handling issues in the OSG. We are investigating the feasibility of using the integrated Rule-Oriented Data System developed at RENCI as a front-end service to the OSG SEs. The current architecture, state of deployment and performance test results will be discussed. We will also provide examples of current usage of the system by beta-users.

  17. Broadcast Encryption for Differently Privileged

    NASA Astrophysics Data System (ADS)

    Jin, Hongxia; Lotspiech, Jeffery

    Broadcast encryption is a primary technology that has been used for content protection. It enables a broadcaster to distribute content to a set of users so that only a privileged subset of users can access the content and another subset of revoked users cannot access the content. The main enabling block in a broadcast encryption scheme is the session key block, which each authorized user processes differently, but each gets the same valid session key. Currently all existing broadcast encryption schemes have assumed that the content and authorized users are equally privileged. There are emerging scenarios that demand protection for content with different privileges and for users with different privileges. In this paper we shall present a new broadcast encryption scheme that continues to employ single session key blocks but provides different privileged protections for different content and users. In particular we will expand the elegant subset-cover-based broadcast encryption scheme. We shall introduce a new concept called “security class” into the session key blocks. We use keys derived from a chain of one-way functions. Our approach is simple, efficient and secure.

  18. 76 FR 11756 - Action Affecting Export Privileges; Ali Amirnazmi; Order Denying Export Privileges

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-03

    ...Action Affecting Export Privileges; Ali Amirnazmi; Order Denying Export Privileges In the Matter of: Ali Amirnazmi, Register 63302-066...the Eastern District of Pennsylvania, Ali Amirnazmi (``Amirnazmi'')...

  19. 25 CFR 700.709 - Grazing privileges.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 2 2010-04-01 2010-04-01 false Grazing privileges. 700.709 Section 700.709 Indians...OPERATIONS AND RELOCATION PROCEDURES New Lands Grazing § 700.709 Grazing privileges. (a) A list of permittees...

  20. Christian Privilege: Breaking a Sacred Taboo

    Microsoft Academic Search

    Lewis Z. Schlosser

    2003-01-01

    The author discusses the concept of privilege in terms of the benefits en- joyed by Whites and men (P. McIntosh, 1998). This article presents a new theoretical perspective focusing on religious privilege and includes a list of privileges that are enjoyed by members of the dominant religious group (i.e., Christians) in the United States. INSERTED FOR SPACE\\/SPANISH ABSTRACT TO COME

  1. 14 CFR 61.2 - Exercise of Privilege.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...2012-01-01 2012-01-01 false Exercise of Privilege. 61.2 Section 61...GROUND INSTRUCTORS General § 61.2 Exercise of Privilege. (a) Validity. No person may: (1) Exercise privileges of a certificate,...

  2. 14 CFR 61.2 - Exercise of Privilege.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...2014-01-01 2014-01-01 false Exercise of Privilege. 61.2 Section 61...GROUND INSTRUCTORS General § 61.2 Exercise of Privilege. (a) Validity. No person may: (1) Exercise privileges of a certificate,...

  3. 14 CFR 61.2 - Exercise of Privilege.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...2010-01-01 2010-01-01 false Exercise of Privilege. 61.2 Section 61...GROUND INSTRUCTORS General § 61.2 Exercise of Privilege. (a) Validity. No person may: (1) Exercise privileges of a certificate,...

  4. 14 CFR 61.2 - Exercise of Privilege.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...2011-01-01 2011-01-01 false Exercise of Privilege. 61.2 Section 61...GROUND INSTRUCTORS General § 61.2 Exercise of Privilege. (a) Validity. No person may: (1) Exercise privileges of a certificate,...

  5. 14 CFR 61.2 - Exercise of Privilege.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...2013-01-01 2013-01-01 false Exercise of Privilege. 61.2 Section 61...GROUND INSTRUCTORS General § 61.2 Exercise of Privilege. (a) Validity. No person may: (1) Exercise privileges of a certificate,...

  6. The Hair Follicle and Immune Privilege

    Microsoft Academic Search

    Ralf Paus; Natsuho Ito; Masahiro Takigawa; Taisuke Ito

    2003-01-01

    This essay reviews the available evidence that the proximal hair follicle epithelium generates and maintains an area of relative immune privilege during a defined segment of the hair cycle (i.e., during anagen). This immune privilege is chiefly characterized by a very low level of expression of MHC class Ia antigens and by the local production of potent immunosuppressive agents, such

  7. Privileged frameworks from snake venom.

    PubMed

    Reeks, T A; Fry, B G; Alewood, P F

    2015-05-01

    Venom as a form of chemical prey capture is a key innovation that has underpinned the explosive radiation of the advanced snakes (Caenophidia). Small venom proteins are often rich in disulfide bonds thus facilitating stable molecular scaffolds that present key functional residues on the protein surface. New toxin types are initially developed through the venom gland over-expression of normal body proteins, their subsequent gene duplication and diversification that leads to neofunctionalisation as random mutations modify their structure and function. This process has led to preferentially selected (privileged) cysteine-rich scaffolds that enable the snake to build arrays of toxins many of which may lead to therapeutic products and research tools. This review focuses on cysteine-rich small proteins and peptides found in snake venoms spanning natriuretic peptides to phospholipase enzymes, while highlighting their three-dimensional structures and biological functions as well as their potential as therapeutic agents or research tools. PMID:25693678

  8. Privileged communication in the school psychologist-client relationship

    Microsoft Academic Search

    Susan Jacob; Katie E. Powers

    2009-01-01

    In the years since the 1996 Supreme Court Jaffee v. Redmond decision, many states broadened the scope of their laws governing privilege to include non-doctoral school psychologists. This article addresses the meaning of the term privileged communication and identifies common exceptions to privilege. Findings from a computerized search of the status of privileged communication between school psychologists and their clients

  9. 78 FR 58995 - Order Denying Export Privileges

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-25

    ...Denying Export Privileges In the Matter of: Iman Kazerani, 153 Orient Way, Rutherford...District Court, District of New Jersey, Iman Kazerani (``Kazerani'') was convicted...hereby Ordered I. Until January 30, 2018, Iman Kazerani, with a last known address...

  10. 34 CFR 81.17 - Privileges.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...The privilege of a person or governmental organization not to produce documents or provide information in a proceeding under this part is governed by the principles of common law as interpreted by the courts of the United States. (Authority: 20...

  11. Interscholastic Sports: A Character-Building Privilege

    E-print Network

    Lumpkin, Angela; Stokowski, Sarah

    2011-01-01

    Lumpkin, Angela. (2011) Interscholastic sports: A character-building privilege. Kappa Delta Pi Record, 47, 124-128. Publisher’s official version: http://dx.doi.org/10.1080/00228958.2011.10516576 . Open Access version: http.... Lumpkin, Angela. (2011) Interscholastic sports: A character-building privilege. Kappa Delta Pi Record, 47, 124-128. Publisher’s official version: http://dx.doi.org/10.1080/00228958.2011.10516576 . Open Access version: http...

  12. Incorporating privileged information through metric learning.

    PubMed

    Fouad, Shereen; Tino, Peter; Raychaudhury, Somak; Schneider, Petra

    2013-07-01

    In some pattern analysis problems, there exists expert knowledge, in addition to the original data involved in the classification process. The vast majority of existing approaches simply ignore such auxiliary (privileged) knowledge. Recently a new paradigm-learning using privileged information-was introduced in the framework of SVM+. This approach is formulated for binary classification and, as typical for many kernel-based methods, can scale unfavorably with the number of training examples. While speeding up training methods and extensions of SVM+ to multiclass problems are possible, in this paper we present a more direct novel methodology for incorporating valuable privileged knowledge in the model construction phase, primarily formulated in the framework of generalized matrix learning vector quantization. This is done by changing the global metric in the input space, based on distance relations revealed by the privileged information. Hence, unlike in SVM+, any convenient classifier can be used after such metric modification, bringing more flexibility to the problem of incorporating privileged information during the training. Experiments demonstrate that the manipulation of an input space metric based on privileged data improves classification accuracy. Moreover, our methods can achieve competitive performance against the SVM+ formulations. PMID:24808523

  13. FermiGrid - experience and future plans

    SciTech Connect

    Chadwick, K.; Berman, E.; Canal, P.; Hesselroth, T.; Garzoglio, G.; Levshina, T.; Sergeev, V.; Sfiligoi, I.; Timm, S.; Yocum, D.; /Fermilab

    2007-09-01

    Fermilab supports a scientific program that includes experiments and scientists located across the globe. In order to better serve this community, Fermilab has placed its production computer resources in a Campus Grid infrastructure called 'FermiGrid'. The FermiGrid infrastructure allows the large experiments at Fermilab to have priority access to their own resources, enables sharing of these resources in an opportunistic fashion, and movement of work (jobs, data) between the Campus Grid and National Grids such as Open Science Grid and the WLCG. FermiGrid resources support multiple Virtual Organizations (VOs), including VOs from the Open Science Grid (OSG), EGEE and the Worldwide LHC Computing Grid Collaboration (WLCG). Fermilab also makes leading contributions to the Open Science Grid in the areas of accounting, batch computing, grid security, job management, resource selection, site infrastructure, storage management, and VO services. Through the FermiGrid interfaces, authenticated and authorized VOs and individuals may access our core grid services, the 10,000+ Fermilab resident CPUs, near-petabyte (including CMS) online disk pools and the multi-petabyte Fermilab Mass Storage System. These core grid services include a site wide Globus gatekeeper, VO management services for several VOs, Fermilab site authorization services, grid user mapping services, as well as job accounting and monitoring, resource selection and data movement services. Access to these services is via standard and well-supported grid interfaces. We will report on the user experience of using the FermiGrid campus infrastructure interfaced to a national cyberinfrastructure--the successes and the problems.

  14. 19 CFR 351.105 - Public, business proprietary, privileged, and classified information.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...business proprietary, privileged, and classified information. 351.105 Section...business proprietary, privileged, and classified information. (a) Introduction...business proprietary, privileged, and classified. In general, public...

  15. 19 CFR 351.105 - Public, business proprietary, privileged, and classified information.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...business proprietary, privileged, and classified information. 351.105 Section...business proprietary, privileged, and classified information. (a) Introduction...business proprietary, privileged, and classified. In general, public...

  16. 19 CFR 351.105 - Public, business proprietary, privileged, and classified information.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...business proprietary, privileged, and classified information. 351.105 Section...business proprietary, privileged, and classified information. (a) Introduction...business proprietary, privileged, and classified. In general, public...

  17. 19 CFR 146.41 - Privileged foreign status.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 false Privileged foreign status. 146.41 Section 146.41 Customs...CONTINUED) FOREIGN TRADE ZONES Status of Merchandise in a Zone § 146.41 Privileged foreign status. (a) General. Foreign...

  18. 48 CFR 970.0371-5 - Use of privileged information.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...REGULATIONS DOE MANAGEMENT AND OPERATING CONTRACTS... Use of privileged information. Management and operating contractor...not use privileged information for personal gain...development; and knowledge of selections of...

  19. Least User Privilege Policy 1.0 Purpose

    E-print Network

    Demirel, Melik C.

    user account privilege settings used during normal computer operations. Computer security is the primary driving force behind this policy. In recent years the hackers have significantly increased of daily business related computer operations do not require administrator (privileged) account access

  20. 38 CFR 46.4 - Clinical privileges actions reporting.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...clinical privileges of a physician or dentist relating to possible incompetence or improper...restriction of such privileges by a physician or dentist either while under investigation by...1) With respect to the physician or dentist: (i) Name; (ii) Work...

  1. 38 CFR 46.4 - Clinical privileges actions reporting.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...clinical privileges of a physician or dentist relating to possible incompetence or improper...restriction of such privileges by a physician or dentist either while under investigation by...1) With respect to the physician or dentist: (i) Name; (ii) Work...

  2. Enforcing Dynamic Write Privileges in Data Outsourcing$

    E-print Network

    Samarati, Pierangela

    Enforcing Dynamic Write Privileges in Data Outsourcing$ Sabrina De Capitani di Vimercatia , Sara authorizations on the outsourced data. Recently proposed approaches based on selective encryp- tion provide owner and the users to verify the integrity of the outsourced data. Keywords: Data outsourcing, data

  3. 48 CFR 752.7029 - Post privileges.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...as it would be to any U.S. citizen in an emergency medical situation in the country. (b) Privileges such as the use of APO, PX's, commissaries, and officer's clubs are established at posts abroad pursuant to agreements between the...

  4. 48 CFR 752.7029 - Post privileges.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...as it would be to any U.S. citizen in an emergency medical situation in the country. (b) Privileges such as the use of APO, PX's, commissaries, and officer's clubs are established at posts abroad pursuant to agreements between the...

  5. 48 CFR 752.7029 - Post privileges.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...as it would be to any U.S. citizen in an emergency medical situation in the country. (b) Privileges such as the use of APO, PX's, commissaries, and officer's clubs are established at posts abroad pursuant to agreements between the...

  6. 48 CFR 752.7029 - Post privileges.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...as it would be to any U.S. citizen in an emergency medical situation in the country. (b) Privileges such as the use of APO, PX's, commissaries, and officer's clubs are established at posts abroad pursuant to agreements between the...

  7. 48 CFR 752.7029 - Post privileges.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...as it would be to any U.S. citizen in an emergency medical situation in the country. (b) Privileges such as the use of APO, PX's, commissaries, and officer's clubs are established at posts abroad pursuant to agreements between the...

  8. PRIVILEGED AND CONFIDENTIAL ATTORNEY-CLIENT COMMUNICATION

    E-print Network

    9/29/09 PRIVILEGED AND CONFIDENTIAL ATTORNEY-CLIENT COMMUNICATION LEGAL SERVICES REQUEST FORM`i 96822 Facsimile No.: (808) 956-2109 This request is a confidential communication and should be treated as such. Indicate "Confidential" on the envelope and/or the facsimile cover sheet. Manoa (Revised 9

  9. "White Privilege": A Shield against Reason

    ERIC Educational Resources Information Center

    Campbell, Douglas G.

    2010-01-01

    In this article, the author takes a stand against the unthinking evocation of so-called white privilege he found on campus and among his students at California State University, Chico, and argues for the reinstatement of true diversity--intellectual diversity. He says people in the academia should be clear in the classroom, on committees, in…

  10. Recognizing Privilege: Rural, Urban, and International Perspectives

    ERIC Educational Resources Information Center

    Munn, Sunny L.; Rinfret, Sara; Davitt, Kendra

    2010-01-01

    Forms of White oppression in the United States are hierarchically evaluated through male-dominated society. This paper concentrates on a different perspective--White, female privilege through the experiences and self-reflections of narratives from three geographical perspectives--rural, urban, and international. Within the theoretical frameworks…

  11. Christian Privilege, History, and Trends in U.S. Religion

    ERIC Educational Resources Information Center

    Fairchild, Ellen E.

    2009-01-01

    In her seminal essay on white privilege, McIntosh (1988) began a discussion on privilege that has taken hold in areas outside her original intent. In this chapter, the author discusses privilege as it pertains not only to race and gender but to religion, especially the Christian faith. The author incorporates the current state of religious flux in…

  12. Privileged Communication in the School Psychologist-Client Relationship

    ERIC Educational Resources Information Center

    Jacob, Susan; Powers, Katie E.

    2009-01-01

    In the years since the 1996 Supreme Court "Jaffee v. Redmond" decision, many states broadened the scope of their laws governing privilege to include non-doctoral school psychologists. This article addresses the meaning of the term "privileged communication" and identifies common exceptions to privilege. Findings from a computerized search of the…

  13. Secular Privilege: Deconstructing the Invisible Rose?Tinted Sunglasses

    Microsoft Academic Search

    David R. Hodge

    2009-01-01

    To facilitate movement toward a more equitable society, this paper explores the construct of secular privilege. In keeping with a critical perspective, power differentials are examined and illustrated in the nation's most influential medium for constructing public discourse—broadcast programming. Given the pervasiveness and invisibility of secular privilege, representative privileges are delineated. A subsample of these are deconstructed to provide insight

  14. OASIS: a data and software distribution service for Open Science Grid

    NASA Astrophysics Data System (ADS)

    Bockelman, B.; Caballero Bejar, J.; De Stefano, J.; Hover, J.; Quick, R.; Teige, S.

    2014-06-01

    The Open Science Grid encourages the concept of software portability: a user's scientific application should be able to run at as many sites as possible. It is necessary to provide a mechanism for OSG Virtual Organizations to install software at sites. Since its initial release, the OSG Compute Element has provided an application software installation directory to Virtual Organizations, where they can create their own sub-directory, install software into that sub-directory, and have the directory shared on the worker nodes at that site. The current model has shortcomings with regard to permissions, policies, versioning, and the lack of a unified, collective procedure or toolset for deploying software across all sites. Therefore, a new mechanism for data and software distributing is desirable. The architecture for the OSG Application Software Installation Service (OASIS) is a server-client model: the software and data are installed only once in a single place, and are automatically distributed to all client sites simultaneously. Central file distribution offers other advantages, including server-side authentication and authorization, activity records, quota management, data validation and inspection, and well-defined versioning and deletion policies. The architecture, as well as a complete analysis of the current implementation, will be described in this paper.

  15. Granting clinical privileges for telerobotic surgery.

    PubMed

    Ballantyne, Garth H; Kelley, William E

    2002-02-01

    Surgeons can now perform operations on their patients while sitting at a remote site. During telerobotic operations, the surgeon sits at a computer console. The computer translates the motions of the surgeon's hands into motions of the robotic instruments. Introduction of telerobotics into clinical practice raises issues comparable to those generated by the rapid introduction of laparoscopic cholecystectomy in the late 1980s. As a result, we have instituted processes in our hospitals for the granting of clinical privileges for telerobotic surgery. These processes are derived from the guidelines of the Society of American Gastrointestinal Endoscopic Surgeons for granting clinical privileges for laparoscopic general surgery. Our hospitals require the following: (1) board certification or board eligibility for the appropriate surgical board; (2) clinical privileges for the open and laparoscopic operations that will be performed telerobotically; (3) satisfactory completion of the Food and Drug Administration-mandated training course in the safe use of the robotic surgical system; (4) performance of telerobotic operations in animate models; (5) observation of clinical cases of telerobotic surgery by an expert surgeon; (6) acting as bedside assistant surgeon in telerobotic operations or supervision by a preceptor during the surgeon's initial operations; (7) observation by a proctor of the surgeon's initial clinical telerobotic operations; and (8) ongoing monitoring of surgical outcomes of telerobotic operations. This process has facilitated the safe and orderly introduction of telerobotics operations into clinical practice in our hospitals. PMID:12008757

  16. Chirp: a practical global filesystem for cluster and Grid computing

    Microsoft Academic Search

    Douglas Thain; Christopher Moretti; Jeffrey Hemmes

    2009-01-01

    Traditional distributed £lesystem technologies designed for local and campus area networks do not adapt well to wide area grid computing environments. To address this problem, we have designed the Chirp distributed £lesystem, which is designed from the ground up to meet the needs of grid computing. Chirp is easily deployed without special privileges, provides strong andexible security mechanisms, tunable consistency

  17. ReSS: A Resource Selection Service for the Open Science Grid

    SciTech Connect

    Garzoglio, Gabriele; Levshina, Tanya; Mhashilkar, Parag; Timm, Steve; /Fermilab

    2008-01-01

    The Open Science Grid offers access to hundreds of computing and storage resources via standard Grid interfaces. Before the deployment of an automated resource selection system, users had to submit jobs directly to these resources. They would manually select a resource and specify all relevant attributes in the job description prior to submitting the job. The necessity of a human intervention in resource selection and attribute specification hinders automated job management components from accessing OSG resources and it is inconvenient for the users. The Resource Selection Service (ReSS) project addresses these shortcomings. The system integrates condor technology, for the core match making service, with the gLite CEMon component, for gathering and publishing resource information in the Glue Schema format. Each one of these components communicates over secure protocols via web services interfaces. The system is currently used in production on OSG by the DZero Experiment, the Engagement Virtual Organization, and the Dark Energy. It is also the resource selection service for the Fermilab Campus Grid, FermiGrid. ReSS is considered a lightweight solution to push-based workload management. This paper describes the architecture, performance, and typical usage of the system.

  18. Privileged Pursuits of Social Justice: Exploring Privileged College Students' Motivation for Engaging in Social Justice

    ERIC Educational Resources Information Center

    Howard, Adam

    2011-01-01

    The author of this article explores the motivation factors that lead privileged college students to be involved in social justice efforts. The students participating in this study identified multiple reasons for their initial and continued involvement in social justice work, but all students identified three main sources of motivation: responding…

  19. A Science Driven Production Cyberinfrastructure-the Open Science Grid

    SciTech Connect

    Ernst, M.

    2010-12-30

    This article describes the Open Science Grid, a large distributed computational infrastructure in the United States which supports many different high-throughput scientific applications, and partners (federates) with other infrastructures nationally and internationally to form multi-domain integrated distributed systems for science. The Open Science Grid consortium not only provides services and software to an increasingly diverse set of scientific communities, but also fosters a collaborative team of practitioners and researchers who use, support and advance the state of the art in large-scale distributed computing. The scale of the infrastructure can be expressed by the daily throughput of around seven hundred thousand jobs, just under a million hours of computing, a million file transfers, and half a petabyte of data movement. In this paper we introduce and reflect on some of the OSG capabilities, usage and activities.

  20. 14 CFR 65.107 - Repairman certificate (light-sport aircraft): Eligibility, privileges, and limits.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...For powered parachute class privileges—104 hours, (D) For lighter than air class privileges—80 hours, (E) For glider class privileges—80 hours. (b) The holder of a repairman certificate (light-sport aircraft) with an inspection...

  1. 14 CFR 65.107 - Repairman certificate (light-sport aircraft): Eligibility, privileges, and limits.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...For powered parachute class privileges—104 hours, (D) For lighter than air class privileges—80 hours, (E) For glider class privileges—80 hours. (b) The holder of a repairman certificate (light-sport aircraft) with an inspection...

  2. 32 CFR 634.14 - Restoration of driving privileges upon acquittal of intoxicated driving.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...National Defense 4 2010-07-01 2010-07-01 true Restoration of driving privileges upon acquittal of intoxicated driving...VEHICLE TRAFFIC SUPERVISION Driving Privileges § 634.14 Restoration of driving privileges upon acquittal of intoxicated...

  3. 32 CFR 634.14 - Restoration of driving privileges upon acquittal of intoxicated driving.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...National Defense 4 2012-07-01 2011-07-01 true Restoration of driving privileges upon acquittal of intoxicated driving...VEHICLE TRAFFIC SUPERVISION Driving Privileges § 634.14 Restoration of driving privileges upon acquittal of intoxicated...

  4. 32 CFR 634.14 - Restoration of driving privileges upon acquittal of intoxicated driving.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...National Defense 4 2011-07-01 2011-07-01 false Restoration of driving privileges upon acquittal of intoxicated driving...VEHICLE TRAFFIC SUPERVISION Driving Privileges § 634.14 Restoration of driving privileges upon acquittal of intoxicated...

  5. 32 CFR 634.14 - Restoration of driving privileges upon acquittal of intoxicated driving.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...National Defense 4 2014-07-01 2013-07-01 true Restoration of driving privileges upon acquittal of intoxicated driving...VEHICLE TRAFFIC SUPERVISION Driving Privileges § 634.14 Restoration of driving privileges upon acquittal of intoxicated...

  6. 33 CFR 52.43 - Requests for further information; submissions of classified, privileged, and sensitive information.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...further information; submissions of classified, privileged, and sensitive information...further information; submissions of classified, privileged, and sensitive information...Guard or other Government office submits classified, privileged, or sensitive...

  7. 33 CFR 52.43 - Requests for further information; submissions of classified, privileged, and sensitive information.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...further information; submissions of classified, privileged, and sensitive information...further information; submissions of classified, privileged, and sensitive information...Guard or other Government office submits classified, privileged, or sensitive...

  8. 33 CFR 52.43 - Requests for further information; submissions of classified, privileged, and sensitive information.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...further information; submissions of classified, privileged, and sensitive information...further information; submissions of classified, privileged, and sensitive information...Guard or other Government office submits classified, privileged, or sensitive...

  9. 33 CFR 52.43 - Requests for further information; submissions of classified, privileged, and sensitive information.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...further information; submissions of classified, privileged, and sensitive information...further information; submissions of classified, privileged, and sensitive information...Guard or other Government office submits classified, privileged, or sensitive...

  10. Playing with Power and Privilege: Theatre Games in Teacher Education

    ERIC Educational Resources Information Center

    Souto-Manning, Mariana

    2011-01-01

    In preparing White teachers to educate a diverse society, teacher educators must help them see the veil which colors their views of the world and privileges them. This study explores the need for playing with power and privilege to deconstruct the concept of meritocracy and challenge the idea of one-ness, thereby fostering more conscious locations…

  11. Cultural Anarchism: The Consequences of Privileging Languages in Nepal

    ERIC Educational Resources Information Center

    Giri, Ram Ashish

    2010-01-01

    Nepali, the official language of administration of Nepal, has been privileged through systematic political manoeuvres throughout its history. English also enjoys special status and privileges, and despite the fact that it is officially only a "foreign" language, in practice it is one of the most dominant languages in educational and economic…

  12. Privilege revisited: an evaluation of the eye's defence mechanisms

    Microsoft Academic Search

    J V Forrester

    2009-01-01

    Immune privilege has been considered for many years to be an interesting phenomenon associated with certain specialised tissues such as the eye and the brain. In recent years however, it has become clear that the active and passive mechanisms which underpin immune privilege are in fact a form of tissue-based immunological tolerance, perhaps of equal importance in providing defence against

  13. Ordinal-Based Metric Learning for Learning Using Privileged Information

    E-print Network

    Tino, Peter

    Ordinal-Based Metric Learning for Learning Using Privileged Information Shereen Fouad and Peter Tino Abstract-- Learning Using privileged Information (LUPI), originally proposed in [1], is an advanced learning paradigm that aims to improve the supervised learning in the presence of additional

  14. RBAC POLICIES IN XML FOR X.509 BASED PRIVILEGE MANAGEMENT

    E-print Network

    Kent, University of

    1 RBAC POLICIES IN XML FOR X.509 BASED PRIVILEGE MANAGEMENT D.W.Chadwick, A. Otenko University. There is a brief description of the X.509 privilege management model, and how it can be used to implement RBAC and the Open Group's AZN API. Key words: X.509, Attribute Certificates, RBAC, LDAP, Role Based Access Controls

  15. RBAC Policies in XML for X.509 Based Privilege Management

    Microsoft Academic Search

    David W. Chadwick; Alexander Otenko

    2002-01-01

    This paper describes a role based access control policy template for use by privilege management infrastructures where the roles are stored as X.509 Attribute Certificates in an LDAP directory. There is a brief description of the X.509 privilege management model, and how it can be used to implement RBAC. Policies that conform to the template are written in XML, and

  16. Labels Matter: Changing the Conversation From “-isms” to Privilege

    NASA Astrophysics Data System (ADS)

    Dancy, Melissa H.

    2006-12-01

    Whites typically view racism as discrimination and unfair judgment based on skin color. This view inhibits an end to race-based oppression because it names the issue in terms of the oppressed. A more accurate label is White Privilege. The concept of White privilege is very different from the concept of racism because it includes all Whites, not just those who hold explicit racist views. Acknowledging privilege can be threatening for those who hold a privileged status. However, it is necessary for those who are advantaged to have clarity about their status if the “isms” are to be overcome. In this talk I will discuss my personal struggle to acknowledge my own privileged status (White, American, straight, etc.) and will offer suggestions based on my own experiences for working with advantaged populations committed to overcoming all forms of oppression.

  17. The Nature of White Privilege in the Teaching and Training of Adults

    ERIC Educational Resources Information Center

    Lund, Carole L.

    2010-01-01

    This chapter describes white privilege and how it impacts the learning environment. Included are actual examples of white privilege from practice and how enforcing white privilege results in racism. The author hopes this chapter will provide a foundation and increase awareness of white privilege and the adult and continuing educators' role in…

  18. 14 CFR 61.133 - Commercial pilot privileges and limitations.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    14 Aeronautics and Space 2 2012-01-01 2012-01-01 false Commercial pilot privileges and limitations...133 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION...AND GROUND INSTRUCTORS Commercial Pilots § 61.133...

  19. 14 CFR 61.133 - Commercial pilot privileges and limitations.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    14 Aeronautics and Space 2 2013-01-01 2013-01-01 false Commercial pilot privileges and limitations...133 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION...AND GROUND INSTRUCTORS Commercial Pilots § 61.133...

  20. 14 CFR 61.133 - Commercial pilot privileges and limitations.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    14 Aeronautics and Space 2 2014-01-01 2014-01-01 false Commercial pilot privileges and limitations...133 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION...AND GROUND INSTRUCTORS Commercial Pilots § 61.133...

  1. 24 CFR 200.1515 - Suspension of MAP privileges.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Suspension of MAP privileges. 200.1515 Section 200.1515 Housing...TO FHA PROGRAMS Multifamily Accelerated Processing (MAP): MAP Lender Quality Assurance Enforcement § 200.1515...

  2. 24 CFR 200.1515 - Suspension of MAP privileges.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...2013-04-01 2013-04-01 false Suspension of MAP privileges. 200.1515 Section 200.1515 Housing...TO FHA PROGRAMS Multifamily Accelerated Processing (MAP): MAP Lender Quality Assurance Enforcement § 200.1515...

  3. 24 CFR 200.1515 - Suspension of MAP privileges.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...2012-04-01 2012-04-01 false Suspension of MAP privileges. 200.1515 Section 200.1515 Housing...TO FHA PROGRAMS Multifamily Accelerated Processing (MAP): MAP Lender Quality Assurance Enforcement § 200.1515...

  4. 24 CFR 200.1520 - Termination of MAP privileges.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...2014-04-01 2014-04-01 false Termination of MAP privileges. 200.1520 Section 200.1520 Housing...TO FHA PROGRAMS Multifamily Accelerated Processing (MAP): MAP Lender Quality Assurance Enforcement § 200.1520...

  5. 24 CFR 200.1520 - Termination of MAP privileges.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...2013-04-01 2013-04-01 false Termination of MAP privileges. 200.1520 Section 200.1520 Housing...TO FHA PROGRAMS Multifamily Accelerated Processing (MAP): MAP Lender Quality Assurance Enforcement § 200.1520...

  6. 24 CFR 200.1515 - Suspension of MAP privileges.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...2014-04-01 2014-04-01 false Suspension of MAP privileges. 200.1515 Section 200.1515 Housing...TO FHA PROGRAMS Multifamily Accelerated Processing (MAP): MAP Lender Quality Assurance Enforcement § 200.1515...

  7. 24 CFR 200.1520 - Termination of MAP privileges.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...2012-04-01 2012-04-01 false Termination of MAP privileges. 200.1520 Section 200.1520 Housing...TO FHA PROGRAMS Multifamily Accelerated Processing (MAP): MAP Lender Quality Assurance Enforcement § 200.1520...

  8. Testicular defense systems: immune privilege and innate immunity.

    PubMed

    Zhao, Shutao; Zhu, Weiwei; Xue, Shepu; Han, Daishu

    2014-09-01

    The mammalian testis possesses a special immunological environment because of its properties of remarkable immune privilege and effective local innate immunity. Testicular immune privilege protects immunogenic germ cells from systemic immune attack, and local innate immunity is important in preventing testicular microbial infections. The breakdown of local testicular immune homeostasis may lead to orchitis, an etiological factor of male infertility. The mechanisms underlying testicular immune privilege have been investigated for a long time. Increasing evidence shows that both a local immunosuppressive milieu and systemic immune tolerance are involved in maintaining testicular immune privilege status. The mechanisms underlying testicular innate immunity are emerging based on the investigation of the pattern recognition receptor-mediated innate immune response in testicular cells. This review summarizes our current understanding of testicular defense mechanisms and identifies topics that merit further investigation. PMID:24954222

  9. Learning using privileged information: SVM+ and weighted SVM.

    PubMed

    Lapin, Maksim; Hein, Matthias; Schiele, Bernt

    2014-05-01

    Prior knowledge can be used to improve predictive performance of learning algorithms or reduce the amount of data required for training. The same goal is pursued within the learning using privileged information paradigm which was recently introduced by Vapnik et al. and is aimed at utilizing additional information available only at training time-a framework implemented by SVM+. We relate the privileged information to importance weighting and show that the prior knowledge expressible with privileged features can also be encoded by weights associated with every training example. We show that a weighted SVM can always replicate an SVM+ solution, while the converse is not true and we construct a counterexample highlighting the limitations of SVM+. Finally, we touch on the problem of choosing weights for weighted SVMs when privileged features are not available. PMID:24576747

  10. 42 CFR 424.540 - Deactivation of Medicare billing privileges.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false Deactivation of Medicare billing privileges. 424.540...540 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT...AND HUMAN SERVICES (CONTINUED) MEDICARE PROGRAM (CONTINUED)...

  11. 42 CFR 424.540 - Deactivation of Medicare billing privileges.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Deactivation of Medicare billing privileges. 424.540...540 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT...AND HUMAN SERVICES (CONTINUED) MEDICARE PROGRAM CONDITIONS FOR...

  12. 42 CFR 424.540 - Deactivation of Medicare billing privileges.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Deactivation of Medicare billing privileges. 424.540...540 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT...AND HUMAN SERVICES (CONTINUED) MEDICARE PROGRAM (CONTINUED)...

  13. 42 CFR 424.540 - Deactivation of Medicare billing privileges.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Deactivation of Medicare billing privileges. 424.540...540 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT...AND HUMAN SERVICES (CONTINUED) MEDICARE PROGRAM CONDITIONS FOR...

  14. 42 CFR 424.540 - Deactivation of Medicare billing privileges.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Deactivation of Medicare billing privileges. 424.540...540 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT...AND HUMAN SERVICES (CONTINUED) MEDICARE PROGRAM (CONTINUED)...

  15. 77 FR 15286 - Confidential Treatment of Privileged Information

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-15

    ...RIN 3170-AA20 Confidential Treatment of Privileged Information...relating to the confidential treatment of information obtained from...CONTACT: John R. Coleman, Senior Litigation Counsel at...regarding the confidential treatment of information obtained...

  16. 77 FR 39617 - Confidential Treatment of Privileged Information

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-05

    ...RIN 3170-AA20 Confidential Treatment of Privileged Information...relating to the confidential treatment of information by adding a...CONTACT: John R. Coleman, Senior Litigation Counsel, Office...relating to the confidential treatment of information, 12 CFR...

  17. 19 CFR 360.108 - Loss of electronic licensing privileges.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...Section 360.108 Customs Duties INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT OF COMMERCE STEEL IMPORT MONITORING AND ANALYSIS SYSTEM § 360.108 Loss of electronic licensing privileges. Should Commerce determine that a filer...

  18. 19 CFR 360.108 - Loss of electronic licensing privileges.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...Section 360.108 Customs Duties INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT OF COMMERCE STEEL IMPORT MONITORING AND ANALYSIS SYSTEM § 360.108 Loss of electronic licensing privileges. Should Commerce determine that a filer...

  19. 19 CFR 360.108 - Loss of electronic licensing privileges.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...Section 360.108 Customs Duties INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT OF COMMERCE STEEL IMPORT MONITORING AND ANALYSIS SYSTEM § 360.108 Loss of electronic licensing privileges. Should Commerce determine that a filer...

  20. 19 CFR 360.108 - Loss of electronic licensing privileges.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...Section 360.108 Customs Duties INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT OF COMMERCE STEEL IMPORT MONITORING AND ANALYSIS SYSTEM § 360.108 Loss of electronic licensing privileges. Should Commerce determine that a filer...

  1. 24 CFR 200.1515 - Suspension of MAP privileges.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Suspension of MAP privileges. 200.1515 Section 200.1515 Housing...TO FHA PROGRAMS Multifamily Accelerated Processing (MAP): MAP Lender Quality Assurance Enforcement § 200.1515...

  2. 14 CFR 65.81 - General privileges and limitations.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...AIRMEN OTHER THAN FLIGHT CREWMEMBERS Mechanics § 65.81 General privileges...limitations. (a) A certificated mechanic may perform or supervise...certificated and appropriately rated mechanic, or a certificated...

  3. 14 CFR 65.95 - Inspection authorization: Privileges and limitations.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...AIRMEN CERTIFICATION: AIRMEN OTHER THAN FLIGHT CREWMEMBERS Mechanics § 65.95 Inspection authorization: Privileges and limitations...keep it available for inspection by the aircraft owner, the mechanic submitting the aircraft, repair, or alteration for...

  4. 14 CFR 65.95 - Inspection authorization: Privileges and limitations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...AIRMEN CERTIFICATION: AIRMEN OTHER THAN FLIGHT CREWMEMBERS Mechanics § 65.95 Inspection authorization: Privileges and limitations...keep it available for inspection by the aircraft owner, the mechanic submitting the aircraft, repair, or alteration for...

  5. 14 CFR 65.95 - Inspection authorization: Privileges and limitations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...AIRMEN CERTIFICATION: AIRMEN OTHER THAN FLIGHT CREWMEMBERS Mechanics § 65.95 Inspection authorization: Privileges and limitations...keep it available for inspection by the aircraft owner, the mechanic submitting the aircraft, repair, or alteration for...

  6. 14 CFR 65.81 - General privileges and limitations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...AIRMEN OTHER THAN FLIGHT CREWMEMBERS Mechanics § 65.81 General privileges...limitations. (a) A certificated mechanic may perform or supervise...certificated and appropriately rated mechanic, or a certificated...

  7. 14 CFR 65.81 - General privileges and limitations.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...AIRMEN OTHER THAN FLIGHT CREWMEMBERS Mechanics § 65.81 General privileges...limitations. (a) A certificated mechanic may perform or supervise...certificated and appropriately rated mechanic, or a certificated...

  8. 14 CFR 65.81 - General privileges and limitations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...AIRMEN OTHER THAN FLIGHT CREWMEMBERS Mechanics § 65.81 General privileges...limitations. (a) A certificated mechanic may perform or supervise...certificated and appropriately rated mechanic, or a certificated...

  9. 14 CFR 65.81 - General privileges and limitations.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...AIRMEN OTHER THAN FLIGHT CREWMEMBERS Mechanics § 65.81 General privileges...limitations. (a) A certificated mechanic may perform or supervise...certificated and appropriately rated mechanic, or a certificated...

  10. 14 CFR 65.95 - Inspection authorization: Privileges and limitations.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...AIRMEN CERTIFICATION: AIRMEN OTHER THAN FLIGHT CREWMEMBERS Mechanics § 65.95 Inspection authorization: Privileges and limitations...keep it available for inspection by the aircraft owner, the mechanic submitting the aircraft, repair, or alteration for...

  11. 14 CFR 65.95 - Inspection authorization: Privileges and limitations.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...AIRMEN CERTIFICATION: AIRMEN OTHER THAN FLIGHT CREWMEMBERS Mechanics § 65.95 Inspection authorization: Privileges and limitations...keep it available for inspection by the aircraft owner, the mechanic submitting the aircraft, repair, or alteration for...

  12. New state legislation for auditing privilege

    SciTech Connect

    Washington, W. [California Manufacturers Association, Sacramento, CA (United States)

    1995-12-31

    The California Manufacturers Association (CMA) is the sponsor of AB 1729. The bill would establish a safety and health audit privilege for employers who engage in voluntary workplace audits in order to prevent workplace injury and illnesses or to evaluate the effectiveness of their management systems. The voluntary audit is in addition to any other required audit, inspection, review, etc. required under the appropriate authority. In a recent national occupational safety and health survey, California was rated number one overall. Much of the credit has to do with the heightened awareness of California based employers of the importance of workplace safety, the high workers` compensation cost associated with injuries and illnesses and the nation`s only mandatory injury and illness prevention program. Moreover, many employers have made the prevention of injury and illness in the workplace a top priority. Voluntary internal safety and health audits are the most thorough and efficient means of achieving that goal. Compared to all other available procedures, audits are the most proactive, and they provide an outstanding tool to assist employers in actively identifying and eliminating potential hazards that could result in an injury or illness before it happens.

  13. The Operator Shell: A means of privilege distribution under Unix

    SciTech Connect

    Neuman, M.; Christoph, G.

    1994-03-01

    The Operator Shell (Osh) is a setuid root, security enhanced, restricted shell for providing fine-grain distribution of system privileges for a wide range of usages and requirements. Osh offers a marked improvement over other Unix privilege distribution systems in its ability to specify access to both commands and files, auditing features, and familiar interface. This paper describes the design, features, security considerations, internals, and applications of the Operator Shell.

  14. Grid management

    NASA Technical Reports Server (NTRS)

    Hwang, Danny

    1992-01-01

    A computational environment that allows many Computational Fluid Dynamics (CFD) engineers to work on the same project exists in the Special Project Office (SPO). This environment enables several users to carry out the task of grid generation. The grid management system, used by the engineers, is described in a brief overview. The topics will include the grid file naming system, the grid-generation procedure, grid storage, and the grid format standard.

  15. Incorporating privileged genetic information for fundus image based glaucoma detection.

    PubMed

    Duan, Lixin; Xu, Yanwu; Li, Wen; Chen, Lin; Wing, Damon Wing Kee; Wong, Tien Yin; Liu, Jiang

    2014-01-01

    Visual features extracted from retinal fundus images have been increasingly used for glaucoma detection, as those images are generally easy to acquire. In recent years, genetic researchers have found that some single nucleic polymorphisms (SNPs) play important roles in the manifestation of glaucoma and also show superiority over fundus images for glaucoma detection. In this work, we propose to use the SNPs to form the so-called privileged information and deal with a practical problem where both fundus images and privileged genetic information exist for the training subjects, while the test objects only have fundus images. To solve this problem, we present an effective approach based on the learning using privileged information (LUPI) paradigm to train a predictive model for the image visual features. Extensive experiments demonstrate the usefulness of our approach in incorporating genetic information for fundus image based glaucoma detection. PMID:25485380

  16. CDF GlideinWMS usage in grid computing of high energy physics

    SciTech Connect

    Zvada, Marian; /Fermilab /Kosice, IEF; Benjamin, Doug; /Duke U.; Sfiligoi, Igor; /Fermilab

    2010-01-01

    Many members of large science collaborations already have specialized grids available to advance their research in the need of getting more computing resources for data analysis. This has forced the Collider Detector at Fermilab (CDF) collaboration to move beyond the usage of dedicated resources and start exploiting Grid resources. Nowadays, CDF experiment is increasingly relying on glidein-based computing pools for data reconstruction. Especially, Monte Carlo production and user data analysis, serving over 400 users by central analysis farm middleware (CAF) on the top of Condor batch system and CDF Grid infrastructure. Condor is designed as distributed architecture and its glidein mechanism of pilot jobs is ideal for abstracting the Grid computing by making a virtual private computing pool. We would like to present the first production use of the generic pilot-based Workload Management System (glideinWMS), which is an implementation of the pilot mechanism based on the Condor distributed infrastructure. CDF Grid computing uses glideinWMS for its data reconstruction on the FNAL campus Grid, user analysis and Monte Carlo production across Open Science Grid (OSG). We review this computing model and setup used including CDF specific configuration within the glideinWMS system which provides powerful scalability and makes Grid computing working like in a local batch environment with ability to handle more than 10000 running jobs at a time.

  17. Using Hadoop File System and MapReduce in a small/medium Grid site

    NASA Astrophysics Data System (ADS)

    Riahi, H.; Donvito, G.; Fanò, L.; Fasi, M.; Marzulli, G.; Spiga, D.; Valentini, A.

    2012-12-01

    Data storage and data access represent the key of CPU-intensive and data-intensive high performance Grid computing. Hadoop is an open-source data processing framework that includes fault-tolerant and scalable distributed data processing model and execution environment, named MapReduce, and distributed File System, named Hadoop distributed File System (HDFS). HDFS was deployed and tested within the Open Science Grid (OSG) middleware stack. Efforts have been taken to integrate HDFS with gLite middleware. We have tested the File System thoroughly in order to understand its scalability and fault-tolerance while dealing with small/medium site environment constraints. To benefit entirely from this File System, we made it working in conjunction with Hadoop Job scheduler to optimize the executions of the local physics analysis workflows. The performance of the analysis jobs which used such architecture seems to be promising, making it useful to follow up in the future.

  18. Adverse privileging actions in the Army Medical Department.

    PubMed

    Gagliano, Rosalind D

    2010-01-01

    Fully 23 years after enactment of the Health Care Quality Improvement Act and 19 years after initiation of the National Practitioner Data Bank reporting requirements, the identification and proper processing of adverse privileging actions continues to be a dynamic, challenging, and rights-preserving system at the forefront of the quality assurance initiatives, both within and outside of the Department of Defense. This article addresses the more pressing legal and practical implications of compliance in the adverse clinical privileging actions forum from the Army Medical Department military treatment facility command perspective. PMID:20467973

  19. 17 CFR 240.12f-3 - Termination or suspension of unlisted trading privileges.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... Termination or suspension of unlisted trading privileges. 240.12f-3 Section...Securities Exchange Act of 1934 Unlisted Trading § 240.12f-3 Termination or suspension of unlisted trading privileges. (a) The issuer of...

  20. 17 CFR 240.12f-1 - Applications for permission to reinstate unlisted trading privileges.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...for permission to reinstate unlisted trading privileges. 240.12f-1 Section...Securities Exchange Act of 1934 Unlisted Trading § 240.12f-1 Applications for permission to reinstate unlisted trading privileges. (a) An...

  1. 17 CFR 240.12f-3 - Termination or suspension of unlisted trading privileges.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... Termination or suspension of unlisted trading privileges. 240.12f-3 Section...Securities Exchange Act of 1934 Unlisted Trading § 240.12f-3 Termination or suspension of unlisted trading privileges. (a) The issuer of...

  2. 17 CFR 240.12f-1 - Applications for permission to reinstate unlisted trading privileges.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...for permission to reinstate unlisted trading privileges. 240.12f-1 Section...Securities Exchange Act of 1934 Unlisted Trading § 240.12f-1 Applications for permission to reinstate unlisted trading privileges. (a) An...

  3. 17 CFR 240.12f-1 - Applications for permission to reinstate unlisted trading privileges.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...for permission to reinstate unlisted trading privileges. 240.12f-1 Section...Securities Exchange Act of 1934 Unlisted Trading § 240.12f-1 Applications for permission to reinstate unlisted trading privileges. (a) An...

  4. 17 CFR 240.12f-3 - Termination or suspension of unlisted trading privileges.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... Termination or suspension of unlisted trading privileges. 240.12f-3 Section...Securities Exchange Act of 1934 Unlisted Trading § 240.12f-3 Termination or suspension of unlisted trading privileges. (a) The issuer of...

  5. 32 CFR 727.8 - Confidential and privileged character of service provided.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...2010-07-01 2010-07-01 false Confidential and privileged character of service provided. 727.8 Section 727.8 National...LEGAL ASSISTANCE § 727.8 Confidential and privileged character of service provided. All information...

  6. 19 CFR 351.105 - Public, business proprietary, privileged, and classified information.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 false Public, business proprietary, privileged...351.105 Customs Duties INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT...Definitions § 351.105 Public, business proprietary, privileged...duty proceeding: public, business proprietary,...

  7. 19 CFR 351.105 - Public, business proprietary, privileged, and classified information.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 false Public, business proprietary, privileged...351.105 Customs Duties INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT...Definitions § 351.105 Public, business proprietary, privileged...duty proceeding: public, business proprietary,...

  8. 77 FR 65463 - Filing of Privileged Materials and Answers to Motions

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-29

    ...providing that privileged material and CEII may be filed...filing process at some point in the future...submitting privileged materials. Under these regulations...monthly basis, and points out that it treats such materials as non-public...

  9. 36 CFR 1254.50 - Does NARA consider reinstating research privileges?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...false Does NARA consider reinstating research privileges? 1254.50 Section 1254...RECORDS AND DONATED HISTORICAL MATERIALS Research Room Rules Other Conduct Rules § 1254.50 Does NARA consider reinstating research privileges? (a) You have 30...

  10. 36 CFR 1254.48 - When does NARA revoke research privileges?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...2010-07-01 false When does NARA revoke research privileges? 1254.48 Section...AND DONATED HISTORICAL MATERIALS Research Room Rules Other Conduct Rules § 1254.48 When does NARA revoke research privileges? (a)...

  11. 36 CFR 1254.48 - When does NARA revoke research privileges?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...2011-07-01 false When does NARA revoke research privileges? 1254.48 Section...AND DONATED HISTORICAL MATERIALS Research Room Rules Other Conduct Rules § 1254.48 When does NARA revoke research privileges? (a)...

  12. 36 CFR 1254.50 - Does NARA consider reinstating research privileges?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...false Does NARA consider reinstating research privileges? 1254.50 Section 1254...RECORDS AND DONATED HISTORICAL MATERIALS Research Room Rules Other Conduct Rules § 1254.50 Does NARA consider reinstating research privileges? (a) You have 30...

  13. 42 CFR 3.204 - Privilege of patient safety work product.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... false Privilege of patient safety work product. 3.204 Section 3...SAFETY ORGANIZATIONS AND PATIENT SAFETY WORK PRODUCT Confidentiality and Privilege Protections of Patient Safety Work Product § 3.204...

  14. 42 CFR 3.204 - Privilege of patient safety work product.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... false Privilege of patient safety work product. 3.204 Section 3...SAFETY ORGANIZATIONS AND PATIENT SAFETY WORK PRODUCT Confidentiality and Privilege Protections of Patient Safety Work Product § 3.204...

  15. 14 CFR 61.315 - What are the privileges and limits of my sport pilot certificate?

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...What are the privileges and limits of my sport pilot certificate? 61.315 Section...FLIGHT INSTRUCTORS, AND GROUND INSTRUCTORS Sport Pilots § 61.315 What are the privileges and limits of my sport pilot certificate? (a) If you...

  16. 14 CFR 61.315 - What are the privileges and limits of my sport pilot certificate?

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...What are the privileges and limits of my sport pilot certificate? 61.315 Section...FLIGHT INSTRUCTORS, AND GROUND INSTRUCTORS Sport Pilots § 61.315 What are the privileges and limits of my sport pilot certificate? (a) If you...

  17. 14 CFR 61.315 - What are the privileges and limits of my sport pilot certificate?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...What are the privileges and limits of my sport pilot certificate? 61.315 Section...FLIGHT INSTRUCTORS, AND GROUND INSTRUCTORS Sport Pilots § 61.315 What are the privileges and limits of my sport pilot certificate? (a) If you...

  18. 75 FR 32743 - Action Affecting Export Privileges; Green Supply, Inc.; Robert Leland Green and William Robert...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-09

    ...DEPARTMENT OF COMMERCE Bureau of Industry and Security Action Affecting Export Privileges; Green Supply, Inc.; Robert Leland Green and William Robert Green; Order Denying Export Privileges In the Matter of: Green Supply, Inc., 3059...

  19. Awakening to White Privilege and Power in Canada

    ERIC Educational Resources Information Center

    Syed, Khalida Tanvir; Hill, Anne

    2011-01-01

    In this article two narratives are used to illustrate how self-awareness of "White" as skin colour reveals associated subtle aspects of power and privilege and with that, an ethic of personal and professional responsibility. The narratives connect experience and action with the conceptual framework of a third, liminal space, demonstrating an…

  20. Accurately Detecting Source Code of Attacks That Increase Privilege

    Microsoft Academic Search

    Robert K. Cunningham; Craig S. Stevenson

    2001-01-01

    Host-based Intrusion Detection Systems (IDS) that rely on audit data exhibit a delay between attack execution and attack detection. A knowledgeable attacker can use this delay to disable the IDS, often by executing an attack that increases privilege. To prevent this we have begun to develop a system to detect these attacks before they are executed. The system separates incoming

  1. Automated detection of vulnerabilities in privileged programs by execution monitoring

    Microsoft Academic Search

    Calvin Ko; George Fink; Karl Levitt

    1994-01-01

    Presents a method for detecting exploitations of vulnerabilities in privileged programs by monitoring their execution using audit trails, where the monitoring is with respect to specifications of the security-relevant behavior of the programs. Our work is motivated by the intrusion detection paradigm, but is an attempt to avoid ad hoc approaches to codifying misuse behavior. Our approach is based on

  2. Peeling the Onion: Teaching Critical Literacy with Students of Privilege.

    ERIC Educational Resources Information Center

    Foss, Abigail

    2002-01-01

    Describes a teacher who explores her passion for critical literacy by challenging students of privilege to name their identities and disrupt the familiar. Creates a classroom founded on the philosophy that every student needs and deserves to be exposed to critical literacy--reading literature and their own lives with an awareness of systems of…

  3. 24 CFR 200.1520 - Termination of MAP privileges.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...be removed from the MAP-Approved Lender list on HUD's Web site. (2) A...lender will lose its MAP privileges for construction...original lender may service a transferred loan once...effect. (6) When a MAP lender loses its...

  4. 24 CFR 200.1520 - Termination of MAP privileges.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...be removed from the MAP-Approved Lender list on HUD's Web site. (2) A...lender will lose its MAP privileges for construction...original lender may service a transferred loan once...effect. (6) When a MAP lender loses its...

  5. 76 FR 39844 - Action Affecting Export Privileges; ERIC COHEN

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-07

    ...Industry and Security Action Affecting Export Privileges...a transaction or took actions with the intent to evade...export of thermal imaging cameras, items subject to the...export of thermal imaging cameras, items subject to the...agrees not to take any action or to make or...

  6. Crete: Endowed by Nature, Privileged by Geography, Threatened by Tourism?

    E-print Network

    Zaferatos, Nicholas C.

    Crete: Endowed by Nature, Privileged by Geography, Threatened by Tourism? Helen Briassoulis in the Mediterranean and the largest Greek island, is a highly heterogeneous region which has experiencedrapid tourism development since the mid- to late 1960s when the growth in international tourism and broader socioeco- nomic

  7. Do windows users follow the principle of least privilege?: investigating user account control practices

    Microsoft Academic Search

    Sara Motiee; Kirstie Hawkey; Konstantin Beznosov

    2010-01-01

    The principle of least privilege requires that users and their programs be granted the most restrictive set of privileges possible to perform required tasks in order to limit the damages caused by security incidents. Low-privileged user accounts (LUA) and user account control (UAC) in Windows Vista and Windows 7 are two practical implementations of this principle. To be successful, however,

  8. 75 FR 56504 - Action Affecting Export Privileges; Rigel Optics, Inc. and Donald Wayne Hatch; Order Denying...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-16

    ...Action Affecting Export Privileges; Rigel Optics, Inc. and Donald Wayne Hatch; Order...Export Privileges In the Matter of: Rigel Optics, Inc., 477 South 28th Street, Suite...Denial of Export Privileges of Rigel Optics, Inc. On May 12, 2009, in the...

  9. The discourse of denial: how white teacher candidates construct race, racism and ‘white privilege

    Microsoft Academic Search

    R. Patrick Solomona; John P. Portelli; Arlene Campbell

    2005-01-01

    This qualitative study focuses on a representative sample from 200 teacher candidates' responses to Peggy McIntosh's article, ‘White privilege: unpacking the invisible knapsack’. The notion and understanding of whiteness and white privilege were explored revealing several strategies that teacher candidates employed to avoid addressing whiteness and its attendant privileges in Canadian society. We analyse three primary strategies that the teacher

  10. Discriminatory Policy among the Undergraduate Students towards Racism and White Privilege in America

    ERIC Educational Resources Information Center

    Sankar, G.

    2014-01-01

    This paper addresses racism and white privilege in America. Racism is generally discriminatory policy and behavior aimed at oppressing non whites whereas white privilege is the advantage gained by whites that is not due to ability or merit. It is argued that white privilege is largely invisible and that this allows the current unacceptable status…

  11. Difficult Dialogues, Privilege and Social Justice: Uses of the Privileged Identity Exploration (PIE) Model in Student Affairs Practice

    ERIC Educational Resources Information Center

    Watt, Sherry K.

    2007-01-01

    This article will introduce the Privileged Identity Exploration (PIE) Model. This model identifies eight (8) defense modes associated with behaviors individuals display when engaged in difficult dialogues about social justice issues. Implications for the model and ways it can be used to assist facilitators as they engage participants in…

  12. A theory of biological relativity: no privileged level of causation

    PubMed Central

    Noble, Denis

    2012-01-01

    Must higher level biological processes always be derivable from lower level data and mechanisms, as assumed by the idea that an organism is completely defined by its genome? Or are higher level properties necessarily also causes of lower level behaviour, involving actions and interactions both ways? This article uses modelling of the heart, and its experimental basis, to show that downward causation is necessary and that this form of causation can be represented as the influences of initial and boundary conditions on the solutions of the differential equations used to represent the lower level processes. These insights are then generalized. A priori, there is no privileged level of causation. The relations between this form of ‘biological relativity’ and forms of relativity in physics are discussed. Biological relativity can be seen as an extension of the relativity principle by avoiding the assumption that there is a privileged scale at which biological functions are determined. PMID:23386960

  13. Predictors of graduate student attitudes toward prescription privileges for psychologists.

    PubMed

    Luscher, Kristen A; Corbin, William R; Bernat, Jeffrey A; Calhoun, Karen S; McNair, Lily D

    2002-07-01

    The issue of gaining prescription privileges and its potential impact on the field of clinical psychology has special relevance for graduate students. This study was designed to investigate clinical graduate students' attitudes toward prescription authority, identify salient variables that contribute to these attitudes, and ascertain preferred models of training. Only 42.5% of respondents personally desired to obtain prescription privilege, although 61.8% of respondents favored efforts of the American Psychological Association to acquire prescription authority. Proponents and opponents were compared on their ratings of positive and negative aspects of the debate. There was strong agreement that the training should not be predoctoral and that it should lead to board certification. The strongest predictors of graduate students' attitudes were concerns about fundamental change to the field, malpractice premiums, and whether they considered it a logical extension of the field. This study provides a framework for understanding important factors influencing the decision-making process among clinical psychology graduate students. PMID:12205718

  14. A theory of biological relativity: no privileged level of causation.

    PubMed

    Noble, Denis

    2012-02-01

    Must higher level biological processes always be derivable from lower level data and mechanisms, as assumed by the idea that an organism is completely defined by its genome? Or are higher level properties necessarily also causes of lower level behaviour, involving actions and interactions both ways? This article uses modelling of the heart, and its experimental basis, to show that downward causation is necessary and that this form of causation can be represented as the influences of initial and boundary conditions on the solutions of the differential equations used to represent the lower level processes. These insights are then generalized. A priori, there is no privileged level of causation. The relations between this form of 'biological relativity' and forms of relativity in physics are discussed. Biological relativity can be seen as an extension of the relativity principle by avoiding the assumption that there is a privileged scale at which biological functions are determined. PMID:23386960

  15. Scalability of network facing services used in the Open Science Grid

    NASA Astrophysics Data System (ADS)

    Sfiligoi, I.; Pi, H.; Würthwein, F.; Theissen, C.; Dost, J. M.

    2011-12-01

    The Open Science Grid relies on several network facing services to deliver resources to its users. The major services are the Compute Elements, Storage Elements, Workload Management Systems and Information Systems. All of these services are exposed to traffic coming from all over the world in an unmanaged way, so it is very important to know how they behave at different levels of load. In this paper we present the methodology and the results of scalability and reliability tests performed by OSG on some of the above services. The major services being tested are the Condor batch system, the GT2, GRAM5 and CREAM CEs, and the BeStMan SRM SE.

  16. Fibonacci Grids

    NASA Technical Reports Server (NTRS)

    Swinbank, Richard; Purser, James

    2006-01-01

    Recent years have seen a resurgence of interest in a variety of non-standard computational grids for global numerical prediction. The motivation has been to reduce problems associated with the converging meridians and the polar singularities of conventional regular latitude-longitude grids. A further impetus has come from the adoption of massively parallel computers, for which it is necessary to distribute work equitably across the processors; this is more practicable for some non-standard grids. Desirable attributes of a grid for high-order spatial finite differencing are: (i) geometrical regularity; (ii) a homogeneous and approximately isotropic spatial resolution; (iii) a low proportion of the grid points where the numerical procedures require special customization (such as near coordinate singularities or grid edges). One family of grid arrangements which, to our knowledge, has never before been applied to numerical weather prediction, but which appears to offer several technical advantages, are what we shall refer to as "Fibonacci grids". They can be thought of as mathematically ideal generalizations of the patterns occurring naturally in the spiral arrangements of seeds and fruit found in sunflower heads and pineapples (to give two of the many botanical examples). These grids possess virtually uniform and highly isotropic resolution, with an equal area for each grid point. There are only two compact singular regions on a sphere that require customized numerics. We demonstrate the practicality of these grids in shallow water simulations, and discuss the prospects for efficiently using these frameworks in three-dimensional semi-implicit and semi-Lagrangian weather prediction or climate models.

  17. The legal assault on physician—patient privilege

    PubMed Central

    McPhedran, Marilou

    1995-01-01

    Can there be appropriate and just disclosure of medical and therapeutic records, given that such records are defined and acted upon quite differently in the arenas of law and health? Medical and therapeutic records are kept for healing purposes, not as findings of fact for a court. However, Canadian courts increasingly are being asked to disregard privilege between doctor and patient when that patient has reported a sexual assault. The Supreme Court will soon rule in two cases that may change policies and laws and affect Canadian physicians, other health care professionals and hospitals.

  18. Grids = Structure.

    ERIC Educational Resources Information Center

    Barrington, Linda; Carter, Jacky

    2003-01-01

    Proposes that narrow columns provide a flexible system of organization for designers. Notes that grids serve the content on the pages, help to develop a layout that will clearly direct the reader to information; and prevent visual monotony. Concludes when grid layouts are used, school publications look as good as professional ones. (PM)

  19. Role of ocular pigment epithelial cells in immune privilege.

    PubMed

    Sugita, Sunao

    2009-01-01

    The ocular microenvironment is both immunosuppressive and anti-inflammatory in nature. Pigment epithelial (PE) cells isolated from the eye possess the ability to suppress the T cell receptor-dependent activation of T cells and the induction of regulatory T cells in vitro. This property is dependent on the cells' capacity to produce cell-surface and soluble inhibitory molecules, for example CD86 (B7-2), transforming growth factor (TGF)-beta, thrombospondin-1, programmed cell death 1 ligand 1 (PD-L1/B7-H1), and cytotoxic T lymphocyte-associated antigen 2alpha. Cultured ocular PE cells from the iris, ciliary body, and retina can individually suppress T-cell activation via mechanisms that partially overlap. Moreover, PE-derived regulatory T cells acquire functions that play a role in establishing immune regulation in the eye. Multiple strategies are employed within the eye to control immune-mediated inflammation. This phenomenon is known as immune privilege and is instrumental in helping to prevent extensive damage to bystander cells that would otherwise lead to blindness. This review focuses on the immunosuppressive property and role of ocular PE cells in immune privileged sites. PMID:19568919

  20. Orienting Counseling Students toward Multiculturalism: Exploring Privilege during a New Student Orientation

    ERIC Educational Resources Information Center

    Estrada, Diane; Poulsen, Shruti; Cannon, Edward; Wiggins, Marsha

    2013-01-01

    New counseling students often have strong reactions to the concept of privilege and become anxious when expected to address issues of multiculturalism personally and professionally. In this article, the authors describe a new student orientation model that focuses on addressing privilege and offer steps toward embracing multiculturalism and social…

  1. 76 FR 80838 - Filing of Privileged Materials and Answers to Motions

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-27

    ...current procedures for submitting materials subject to ALJ protective orders...providing that privileged and CEII material may be filed under 18 CFR 388...electronic filing process at some point in the future). \\20\\ Order...for submission of privileged materials. Under these...

  2. Privilege Separation in HTML5 Applications Devdatta Akhawe, Prateek Saxena, Dawn Song

    E-print Network

    Song, Dawn

    Privilege Separation in HTML5 Applications Devdatta Akhawe, Prateek Saxena, Dawn Song University cost. In this paper, we pro- pose a new design for achieving effective privilege sep- aration in HTML5 empirically show that we can retrofit our design to real-world HTML5 applica- tions (browser extensions

  3. Privileges and Immunities: a Reference Guide to the United States Constitution

    Microsoft Academic Search

    David S. Bogen

    2003-01-01

    The privileges and immunities clauses in the U.S. Constitution forbids one state from discriminating against citizens of another state with respect to privileges and immunities that state affords its own citizens. Of course, the history, interpretation, and rulings on Article IV and the Fourteenth Amendment are much more nuanced and controversial. Bogen details the origins and development of the concept

  4. "Impeached or Questioned": The Uses of Speech in a Privileged Environment.

    ERIC Educational Resources Information Center

    Evans, Gill R.

    2001-01-01

    Examines the legal protections of academic freedom of speech in Britain along with the issues which surround Parliamentary privilege (a university campus is considered a privileged environment under the Education No. 2 Act). Explores implications for freedom to publish and for the freedom of others to comment upon and criticize what the academic…

  5. Teaching Notes: Reframing Multicultural Education--Teaching White Privilege in the Social Work Curriculum

    ERIC Educational Resources Information Center

    Abrams, Laura S.; Gibson, Priscilla

    2007-01-01

    This article proposes a model of teaching diversity in social work education that includes significant content on White privilege. The authors first discuss some limitations of social work's current multicultural framework. Next, they introduce concepts and pedagogical strategies concerning White identity and privilege that are drawn from…

  6. Grid oscillators

    NASA Technical Reports Server (NTRS)

    Popovic, Zorana B.; Kim, Moonil; Rutledge, David B.

    1988-01-01

    Loading a two-dimensional grid with active devices offers a means of combining the power of solid-state oscillators in the microwave and millimeter-wave range. The grid structure allows a large number of negative resistance devices to be combined. This approach is attractive because the active devices do not require an external locking signal, and the combining is done in free space. In addition, the loaded grid is a planar structure amenable to monolithic integration. Measurements on a 25-MESFET grid at 9.7 GHz show power-combining and frequency-locking without an external locking signal, with an ERP of 37 W. Experimental far-field patterns agree with theoretical results obtained using reciprocity.

  7. 17 CFR 240.12f-5 - Exchange rules for securities to which unlisted trading privileges are extended.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...rules for securities to which unlisted trading privileges are extended. 240.12f-5...Securities Exchange Act of 1934 Unlisted Trading § 240.12f-5 Exchange rules for securities to which unlisted trading privileges are extended. A...

  8. 17 CFR 240.12f-5 - Exchange rules for securities to which unlisted trading privileges are extended.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...rules for securities to which unlisted trading privileges are extended. 240.12f-5...Securities Exchange Act of 1934 Unlisted Trading § 240.12f-5 Exchange rules for securities to which unlisted trading privileges are extended. A...

  9. 17 CFR 240.12f-5 - Exchange rules for securities to which unlisted trading privileges are extended.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...rules for securities to which unlisted trading privileges are extended. 240.12f-5...Securities Exchange Act of 1934 Unlisted Trading § 240.12f-5 Exchange rules for securities to which unlisted trading privileges are extended. A...

  10. 14 CFR 61.117 - Private pilot privileges and limitations: Second in command of aircraft requiring more than one...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 2 2011-01-01 2011-01-01 false Private pilot privileges and limitations: Second in...FLIGHT INSTRUCTORS, AND GROUND INSTRUCTORS Private Pilots § 61.117 Private pilot privileges and limitations: Second...

  11. 14 CFR 61.117 - Private pilot privileges and limitations: Second in command of aircraft requiring more than one...

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 2 2010-01-01 2010-01-01 false Private pilot privileges and limitations: Second in...FLIGHT INSTRUCTORS, AND GROUND INSTRUCTORS Private Pilots § 61.117 Private pilot privileges and limitations: Second...

  12. Synthesis of privileged scaffolds by using diversity-oriented synthesis.

    PubMed

    Surakanti, Ramu; Sanivarapu, Sumalatha; Thulluri, Chiranjeevi; Iyer, Pravin S; Tangirala, Raghuram S; Gundla, Rambabu; Addepally, Uma; Murthy, Y L N; Velide, Lakshmi; Sen, Subhabrata

    2013-06-01

    An elegant reagent-controlled strategy has been developed for the generation of a diverse range of biologically active scaffolds from a chiral bicyclic lactam. Reduction of the chiral lactam with LAH or alkylation with LHMDS to trigger different cyclization reactions have been shown to generate privileged scaffolds, such as pyrrolidines, indolines, and cyclotryptamines. Their amenability to substitution allows us to create various compound libraries by using these scaffolds. In?silico studies were used to estimate the drug-like properties of these compounds. Selected compounds were subjected to anticancer screening by using three different cell lines. In addition, all these compounds were subjected to antibacterial screening to gauge the spectrum of biological activity that was conferred by our DOS methodology. Gratifyingly, with no additional iterative cycles, our method directly generated anticancer compounds with potency at low nanomolar concentrations, as represented by spiroindoline 14. PMID:23512685

  13. Privileged Diazepine Compounds and their Emergence as Bromodomain Inhibitors

    PubMed Central

    Smith, Steven G.; Sanchez, Roberto

    2014-01-01

    Chemical compounds built on a diazepine scaffold have recently emerged as potent inhibitors of the acetyl-lysine binding activity of bromodomain-containing proteins, which is required for gene transcriptional activation in cancer and inflammation. Not only have these chemical compounds validated bromodomains as attractive epigenetic drug targets, but they have also brought to the forefront another application of the diazepine, which had already been regarded as a versatile chemical scaffold in rational drug design. This article reviews the success of diazepine compounds as therapeutic agents and examines the unique chemical and geometric features of this privileged scaffold that make it an excellent template for developing potent and selective molecules that control bromodomain-related gene expression in human diseases. PMID:24746559

  14. Explaining prompts children to privilege inductively rich properties.

    PubMed

    Walker, Caren M; Lombrozo, Tania; Legare, Cristine H; Gopnik, Alison

    2014-11-01

    Four experiments with preschool-aged children test the hypothesis that engaging in explanation promotes inductive reasoning on the basis of shared causal properties as opposed to salient (but superficial) perceptual properties. In Experiments 1a and 1b, 3- to 5-year-old children prompted to explain during a causal learning task were more likely to override a tendency to generalize according to perceptual similarity and instead extend an internal feature to an object that shared a causal property. Experiment 2 replicated this effect of explanation in a case of label extension (i.e., categorization). Experiment 3 demonstrated that explanation improves memory for clusters of causally relevant (non-perceptual) features, but impairs memory for superficial (perceptual) features, providing evidence that effects of explanation are selective in scope and apply to memory as well as inference. In sum, our data support the proposal that engaging in explanation influences children's reasoning by privileging inductively rich, causal properties. PMID:25128793

  15. The privileged status of locality in consonant harmony

    PubMed Central

    Finley, Sara

    2011-01-01

    While the vast majority of linguistic processes apply locally, consonant harmony appears to be an exception. In this phonological process, consonants share the same value of a phonological feature, such as secondary place of articulation. In sibilant harmony, [s] and [?] (‘sh’) alternate such that if a word contains the sound [?], all [s] sounds become [?]. This can apply locally as a first-order or non-locally as a second-order pattern. In the first-order case, no consonants intervene between the two sibilants (e.g., [pisasu], [pi?a?u]). In second-order case, a consonant may intervene (e.g., [sipasu], [?ipa?u]). The fact that there are languages that allow second-order non-local agreement of consonant features has led some to question whether locality constraints apply to consonant harmony. This paper presents the results from two artificial grammar learning experiments that demonstrate the privileged role of locality constraints, even in patterns that allow second-order non-local interactions. In Experiment 1, we show that learners do not extend first-order non-local relationships in consonant harmony to second-order nonlocal relationships. In Experiment 2, we show that learners will extend a consonant harmony pattern with second-order long distance relationships to a consonant harmony with first-order long distance relationships. Because second-order non-local application implies first-order non-local application, but first-order non-local application does not imply second-order non-local application, we establish that local constraints are privileged even in consonant harmony. PMID:21686094

  16. Distributed Monitoring Infrastructure for Worldwide LHC Computing Grid

    NASA Astrophysics Data System (ADS)

    Andrade, P.; Babik, M.; Bhatt, K.; Chand, P.; Collados, D.; Duggal, V.; Fuente, P.; Hayashi, S.; Imamagic, E.; Joshi, P.; Kalmady, R.; Karnani, U.; Kumar, V.; Lapka, W.; Quick, R.; Tarragon, J.; Teige, S.; Triantafyllidis, C.

    2012-12-01

    The journey of a monitoring probe from its development phase to the moment its execution result is presented in an availability report is a complex process. It goes through multiple phases such as development, testing, integration, release, deployment, execution, data aggregation, computation, and reporting. Further, it involves people with different roles (developers, site managers, VO[1] managers, service managers, management), from different middleware providers (ARC[2], dCache[3], gLite[4], UNICORE[5] and VDT[6]), consortiums (WLCG[7], EMI[11], EGI[15], OSG[13]), and operational teams (GOC[16], OMB[8], OTAG[9], CSIRT[10]). The seamless harmonization of these distributed actors is in daily use for monitoring of the WLCG infrastructure. In this paper we describe the monitoring of the WLCG infrastructure from the operational perspective. We explain the complexity of the journey of a monitoring probe from its execution on a grid node to the visualization on the MyWLCG[27] portal where it is exposed to other clients. This monitoring workflow profits from the interoperability established between the SAM[19] and RSV[20] frameworks. We show how these two distributed structures are capable of uniting technologies and hiding the complexity around them, making them easy to be used by the community. Finally, the different supported deployment strategies, tailored not only for monitoring the entire infrastructure but also for monitoring sites and virtual organizations, are presented and the associated operational benefits highlighted.

  17. 42 CFR 424.520 - Effective date of Medicare billing privileges.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Effective date of Medicare billing privileges. 424.520...520 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT...AND HUMAN SERVICES (CONTINUED) MEDICARE PROGRAM (CONTINUED)...

  18. 42 CFR 424.520 - Effective date of Medicare billing privileges.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Effective date of Medicare billing privileges. 424.520...520 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT...AND HUMAN SERVICES (CONTINUED) MEDICARE PROGRAM CONDITIONS FOR...

  19. 42 CFR 424.520 - Effective date of Medicare billing privileges.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Effective date of Medicare billing privileges. 424.520...520 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT...AND HUMAN SERVICES (CONTINUED) MEDICARE PROGRAM CONDITIONS FOR...

  20. 42 CFR 424.520 - Effective date of Medicare billing privileges.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Effective date of Medicare billing privileges. 424.520...520 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT...AND HUMAN SERVICES (CONTINUED) MEDICARE PROGRAM (CONTINUED)...

  1. 42 CFR 424.520 - Effective date of Medicare billing privileges.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false Effective date of Medicare billing privileges. 424.520...520 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT...AND HUMAN SERVICES (CONTINUED) MEDICARE PROGRAM (CONTINUED)...

  2. 46 CFR 68.33 - Privileges of a limited coastwise endorsement.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...QUALIFICATION Documentation of Certain Vessels for Oil Spill Cleanup § 68.33 Privileges of a limited...the following purposes: (1) To recover oil discharged into the water. (2) To transport oil discharged into the water. (3) To...

  3. 46 CFR 68.33 - Privileges of a limited coastwise endorsement.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...QUALIFICATION Documentation of Certain Vessels for Oil Spill Cleanup § 68.33 Privileges of a limited...the following purposes: (1) To recover oil discharged into the water. (2) To transport oil discharged into the water. (3) To...

  4. 46 CFR 68.33 - Privileges of a limited coastwise endorsement.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...QUALIFICATION Documentation of Certain Vessels for Oil Spill Cleanup § 68.33 Privileges of a limited...the following purposes: (1) To recover oil discharged into the water. (2) To transport oil discharged into the water. (3) To...

  5. 46 CFR 68.33 - Privileges of a limited coastwise endorsement.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...QUALIFICATION Documentation of Certain Vessels for Oil Spill Cleanup § 68.33 Privileges of a limited...the following purposes: (1) To recover oil discharged into the water. (2) To transport oil discharged into the water. (3) To...

  6. 46 CFR 68.33 - Privileges of a limited coastwise endorsement.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...QUALIFICATION Documentation of Certain Vessels for Oil Spill Cleanup § 68.33 Privileges of a limited...the following purposes: (1) To recover oil discharged into the water. (2) To transport oil discharged into the water. (3) To...

  7. 46 CFR 68.13 - Privileges conferred-documentation of vessel.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Privileges conferred-documentation of vessel. 68.13 Section 68.13...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) DOCUMENTATION AND MEASUREMENT OF VESSELS DOCUMENTATION OF VESSELS: EXCEPTIONS TO COASTWISE...

  8. 46 CFR 68.13 - Privileges conferred-documentation of vessel.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false Privileges conferred-documentation of vessel. 68.13 Section 68.13...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) DOCUMENTATION AND MEASUREMENT OF VESSELS DOCUMENTATION OF VESSELS: EXCEPTIONS TO COASTWISE...

  9. 46 CFR 68.13 - Privileges conferred-documentation of vessel.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Privileges conferred-documentation of vessel. 68.13 Section 68.13...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) DOCUMENTATION AND MEASUREMENT OF VESSELS DOCUMENTATION OF VESSELS: EXCEPTIONS TO COASTWISE...

  10. 46 CFR 68.13 - Privileges conferred-documentation of vessel.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Privileges conferred-documentation of vessel. 68.13 Section 68.13...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) DOCUMENTATION AND MEASUREMENT OF VESSELS DOCUMENTATION OF VESSELS: EXCEPTIONS TO COASTWISE...

  11. Gaming the System: A Critique of Minors' Privilege to Disaffirm Online Contracts

    E-print Network

    Barrett, Jeffrey A.

    , video and online games, design and merchandising, banking, and the energy drink market. Ms. Alemi627 Gaming the System: A Critique of Minors' Privilege to Disaffirm Online Contracts James Chang.................................................................................638 1. Experience Developed While Transacting Online..........................640 2. Disregard

  12. 18 CFR 388.112 - Requests for privileged treatment and Critical Energy Infrastructure Information (CEII) treatment...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...18 Conservation of Power and Water Resources 1 2014-04-01...privileged treatment and Critical Energy Infrastructure Information...112 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION,...

  13. 18 CFR 388.112 - Requests for privileged treatment and Critical Energy Infrastructure Information (CEII) treatment...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...18 Conservation of Power and Water Resources 1 2013-04-01...privileged treatment and Critical Energy Infrastructure Information...112 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION,...

  14. 15 CFR Supplement No. 1 to Part 764 - Standard Terms of Orders Denying Export Privileges

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Standard Terms of Orders Denying Export Privileges No. Supplement No. 1 to Part 764 Commerce and Foreign Trade Regulations...PROTECTIVE MEASURES Pt. 764, Supp. 1 Supplement No. 1 to Part 764—Standard Terms of Orders Denying...

  15. 50 CFR 679.81 - Rockfish Program annual harvester and processor privileges.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 2011-10-01 false Rockfish Program annual harvester and processor privileges. ...THE EXCLUSIVE ECONOMIC ZONE OFF ALASKA Rockfish Program § 679.81 Rockfish Program annual harvester and processor...

  16. The alchemy of immune privilege explored from a neuroimmunological perspective.

    PubMed

    Arck, Petra Clara; Gilhar, Amos; Bienenstock, John; Paus, Ralf

    2008-08-01

    The term 'immune privilege' (IP) generally describes the protection of vital structures, such as the brain, the eye, or the pregnant uterus, from the potentially damaging effects of an inflammatory immune response. Initially, barriers physically camouflaging such organs were thought to shield autoantigens from immune recognition and inflammation. This simplistic concept gave way to a much more complex understanding of IP, which reflects an entire network of interacting immunoregulatory processes and immunosuppressive microenvironments. Also, the number of organs and tissues that enjoy relative IP has grown considerably. This is not surprising since many different organs are constantly exposed to major, potentially damaging inflammatory events, for example, skin, gut, or lung-without evidence for excessive inflammation under physiological conditions. Focusing on fetotrophoblast IP as well as on hair-follicle-associated IP (an underappreciated, yet biologically fascinating, clinically important IP model), we summarize here key regulatory cues that operate in immunoprivileged tissues. Proposing novel concepts of how IP may collapse, for example, by exposure to psychosocial, stress-associated inflammation, we develop related strategies for how IP may be manipulated clinically so as to achieve IP protection and restoration. PMID:18603017

  17. Agora: Grid Community in Vega Grid

    Microsoft Academic Search

    Hao Wang; Zhiwei Xu; Yili Gong; Wei Li

    2003-01-01

    \\u000a In grid environment, how to organize, discover and use grid resources is one of the basic research problems. In this paper,\\u000a we introduce a new concept called agora, which refers grid community in our Vega grid project. We propose a principle on agora\\u000a as one of the basic design principles of Vega grid, which is the community principle. We give

  18. GridMan: A grid manipulation system

    NASA Technical Reports Server (NTRS)

    Eiseman, Peter R.; Wang, Zhu

    1992-01-01

    GridMan is an interactive grid manipulation system. It operates on grids to produce new grids which conform to user demands. The input grids are not constrained to come from any particular source. They may be generated by algebraic methods, elliptic methods, hyperbolic methods, parabolic methods, or some combination of methods. The methods are included in the various available structured grid generation codes. These codes perform the basic assembly function for the various elements of the initial grid. For block structured grids, the assembly can be quite complex due to a large number of clock corners, edges, and faces for which various connections and orientations must be properly identified. The grid generation codes are distinguished among themselves by their balance between interactive and automatic actions and by their modest variations in control. The basic form of GridMan provides a much more substantial level of grid control and will take its input from any of the structured grid generation codes. The communication link to the outside codes is a data file which contains the grid or section of grid.

  19. Cluster and Grid Computing

    NSDL National Science Digital Library

    Amy Apon

    * Overview of grid computing, * Basic Internet technologies: IP, HTTP, UDP, TCP, * Security, * Web Services and Enabling technologies, * Grid service concepts,* Resource Management, * Discovery and Information Services, * Parallel programming techniques suitable for a Grid, * Cluster computing and basic message passing techniques

  20. Membrane Fas ligand activates innate immunity and terminates ocular immune privilege.

    PubMed

    Gregory, Meredith S; Repp, Amanda C; Holhbaum, Andreas M; Saff, Rebecca R; Marshak-Rothstein, Ann; Ksander, Bruce R

    2002-09-01

    It has been proposed that the constitutive expression of Fas ligand (FasL) in the eye maintains immune privilege, in part through inducing apoptosis of infiltrating Fas(+) T cells. However, the role of FasL in immune privilege remains controversial due to studies that indicate FasL is both pro- and anti-inflammatory. To elucidate the mechanism(s) by which FasL regulates immune privilege, we used an ocular tumor model and examined the individual roles of the membrane-bound and soluble form of FasL in regulating ocular inflammation. Following injection into the privileged eye, tumors expressing only soluble FasL failed to trigger inflammation and grew progressively. By contrast, tumors expressing only membrane FasL 1) initiated vigorous neutrophil-mediated inflammation, 2) terminated immune privilege, and 3) were completely rejected. Moreover, the rejection coincided with activation of both innate and adaptive immunity. Interestingly, a higher threshold level of membrane FasL on tumors is required to initiate inflammation within the immune privileged eye, as compared with nonprivileged sites. The higher threshold is due to the suppressive microenvironment found within aqueous humor that blocks membrane FasL activation of neutrophils. However, aqueous humor is unable to completely block the proinflammatory effects of tumor cells that express high levels of membrane FasL. In conclusion, our data indicate that the function of FasL on intraocular tumors is determined by the microenvironment in conjunction with the form and level of FasL expressed. PMID:12193747

  1. Grid Labeling Using A Marked Grid

    NASA Astrophysics Data System (ADS)

    Dunn, Stanley M.; Keizer, Richard L.

    1989-03-01

    Accurate grid labeling is a key step in recovering 3-D surfaces from structured light images. Knowledge of the real world (projector and camera geometry, surface continuity and smoothness, etc.) can be used to derive a set of local and global constraints which the grid labels must satisfy. Propagation of these constraints eliminates all but a small set of possible grid labels, but ambiguous solutions may still remain. This paper discusses a method of eliminating grid labeling ambiguity by adding constraints introduced by placing markers within the grid pattern. Grid labeling is based on geometric and topological constraints. Geometric constraints are global constraints on grid labels arising from knowledge of the camera and projector geometry, from assumed opaqueness of the object, and from knowledge of the work volume. Topological constraints are local constraints on grid labels arising from the sequential ordering of grid labels along a single grid stripe in the camera image, and from the assumption that a continuous (smooth) network of grid stripes in the camera image indicates a continuous (smooth) three-dimensional surface. This last assumption may be sometimes violated due to infrequent "viewing accidents" which may be caused by surface irregularities such as occluding contours or creases or by image processing errors. A problem with previous methods is the possible ambiguity of the recovered surface. This ambiguity occurs when more than one globally consistent set of grid labels is obtained, and consequently more than one object surface is possible. Our results show that the locations of the grid markers provide additional constraints to guide the grid labeling. We will present results of using several algorithms for labeling grids in structured light images. We will show that the additional constraints can be easily included into constraint propagation algorithms previously used for grid labeling.

  2. Unruly democracy and the privileges of public intimacy: (same) sex spousal hiring in academia.

    PubMed

    Nadeau, Chantal

    2005-01-01

    Within the context of a discussion of lesbian academic couples there is something to be said about the (dis)pleasures and profits of a heteronormative practice such as spousal hiring and how much this privilege reveals the broader systemic discrimination vis-à-vis sexual and gender claims in our academic institutions. Two issues emerge from its (questionable) application: (1) How a privilege such as spousal hiring intersects with institutional policies concerning sexual diversity; and in light of this, (2)Why queer or lesbian couples shouldn't embrace dubious spousal hiring incentives. PMID:17548297

  3. RBAC Driven Least Privilege Architecture For Control Systems

    SciTech Connect

    Hull, Julie; Markham, Mark

    2014-01-25

    The concept of role based access control (RBAC) within the IT environment has been studied by researchers and was supported by NIST (circa 1992). This earlier work highlighted the benefits of RBAC which include reduced administrative workload and policies which are easier to analyze and apply. The goals of this research were to expand the application of RBAC in the following ways. • Apply RBAC to the control systems environment: The typical RBAC model within the IT environment is used to control a user’s access to files. Within the control system environment files are replaced with measurement (e.g., temperature) and control (e.g. valve) points organized as a hierarchy of control assets (e.g. a boiler, compressor, refinery unit). Control points have parameters (e.g., high alarm limit, set point, etc.) associated with them. The RBAC model is extended to support access to points and their parameters based upon roles while at the same time allowing permissions for the points to be defined at the asset level or point level directly. In addition, centralized policy administration with distributed access enforcement mechanisms was developed to support the distributed architecture of distributed control systems and SCADA. • Extend the RBAC model to include access control for software and devices: The established RBAC approach is to assign users to roles. This work extends that notion by first breaking the control system down into three layers 1) users, 2) software and 3) devices. An RBAC model is then created for each of these three layers. The result is that RBAC can be used to define machine-to-machine policy enforced via the IP security (IPsec) protocol. This highlights the potential to use RBAC for machine-to-machine connectivity within the internet of things. • Enable dynamic policy based upon the operating mode of the system: The IT environment is generally static with respect to policy. However, large cyber physical systems such as industrial controls have various operating modes (start-up, normal operation, emergency, shut-down and maintenance are typical). The policy enforcement architecture must be able to support changes in access permissions as the mode of the control system changes. For example an operator’s role may not allow the operator to shut down a pump during “normal operation” but that same operator role may be given permission to shut down the pump if the refinery transitions to “emergency” mode. The effectiveness of the approach was validated by applying it to the Experion Process Knowledge System. This is a large commercial industrial control system often used to control oil refineries and other assets within the oil and gas sector. As a by-product, other industries using Experion (Pharmaceuticals, Specialty Chemicals, etc.) also benefit from increased security. Policies representative of those that would be used within an oil refinery were created and validated against the RBAC model as implemented in the underlying SQL database. The administration of policy is simplified which in turn makes it practical for security administrators to specify policies which enforce least privilege. The result is a qualitative reduction in risk. The benefits of the enhanced RBAC model are clear and as a result. Honeywell is incorporating portions of the RBAC research into the 2014 release of Experion.

  4. 13 CFR 114.111 - Does the attorney-client privilege apply when SBA employees are represented by the Government?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...2011-01-01 false Does the attorney-client privilege apply when SBA employees are...Employees § 114.111 Does the attorney-client privilege apply when SBA employees are...undertake a full and traditional attorney-client relationship with the employee with...

  5. Naming a Personal "Unearned" Privilege: What Pre-Service Teachers Identify after a Critical Multicultural Education Course

    ERIC Educational Resources Information Center

    Whiting, Erin Feinauer; Cutri, Ramona Maile

    2015-01-01

    This qualitative study systematically documents pre-service teachers' responses to a writing prompt asking them to name a personal "unearned" privilege on an end-of-term final assessment. Findings suggest that typical White/European heritage pre-service teachers can name privileges that have advantaged their own lives, even after one…

  6. 17 CFR 240.12f-4 - Exemption of securities admitted to unlisted trading privileges from sections 13, 14 and 16.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...Exemption of securities admitted to unlisted trading privileges from sections 13, 14 and...Securities Exchange Act of 1934 Unlisted Trading § 240.12f-4 Exemption of securities admitted to unlisted trading privileges from sections 13, 14...

  7. 17 CFR 240.12f-4 - Exemption of securities admitted to unlisted trading privileges from sections 13, 14 and 16.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...Exemption of securities admitted to unlisted trading privileges from sections 13, 14 and...Securities Exchange Act of 1934 Unlisted Trading § 240.12f-4 Exemption of securities admitted to unlisted trading privileges from sections 13, 14...

  8. 17 CFR 240.12f-2 - Extending unlisted trading privileges to a security that is the subject of an initial public...

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...2012-04-01 false Extending unlisted trading privileges to a security that is the subject...Securities Exchange Act of 1934 Unlisted Trading § 240.12f-2 Extending unlisted trading privileges to a security that is the...

  9. 17 CFR 240.12f-2 - Extending unlisted trading privileges to a security that is the subject of an initial public...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...2014-04-01 false Extending unlisted trading privileges to a security that is the subject...Securities Exchange Act of 1934 Unlisted Trading § 240.12f-2 Extending unlisted trading privileges to a security that is the...

  10. 17 CFR 240.12f-2 - Extending unlisted trading privileges to a security that is the subject of an initial public...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...2013-04-01 false Extending unlisted trading privileges to a security that is the subject...Securities Exchange Act of 1934 Unlisted Trading § 240.12f-2 Extending unlisted trading privileges to a security that is the...

  11. 17 CFR 240.12f-4 - Exemption of securities admitted to unlisted trading privileges from sections 13, 14 and 16.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...Exemption of securities admitted to unlisted trading privileges from sections 13, 14 and...Securities Exchange Act of 1934 Unlisted Trading § 240.12f-4 Exemption of securities admitted to unlisted trading privileges from sections 13, 14...

  12. Abstract The role of benzodiazepine derivatives (BZD) as a privileged scaffold that mimics b-turn

    E-print Network

    Marshall, Garland R.

    Abstract The role of benzodiazepine derivatives (BZD) as a privileged scaffold that mimics b-turn in detail. Stable BZD ring conformers were determined with MM3, and experimental reverse-turn structures. Ideal b-turns were also modeled and similarly compared with BZD conformers. Huge numbers of conformers

  13. The Role of Privilege as Identity in Adolescents' Beliefs about Homelessness, Opportunity, and Inequality

    ERIC Educational Resources Information Center

    Seider, Scott

    2011-01-01

    This mixed methods study investigated the impact of learning about homelessness on the civic development of privileged adolescents. Pre-post surveys, classroom observations, and qualitative interviews revealed that the participating adolescents developed a more complex understanding of the factors that contribute to homelessness; however, this…

  14. Parental Reasoning, Denying Privileges, Yelling, and Spanking: Ethnic Differences and Associations with Child Externalizing Behavior

    Microsoft Academic Search

    Jennifer E. Lansford; Laura B. Wager; John E. Bates; Kenneth A. Dodge; Gregory S. Pettit

    2012-01-01

    Objective. This study was designed to examine whether African American and European American mothers differ in their discipline use when reasoning, denying privileges, yelling, and spanking are considered simultaneously and whether there are ethnic group differences in how these four forms of discipline are associated with child externalizing behavior. Design. The authors used structural equation models to examine relations between

  15. White Principals Examine Power, Privilege, and Identity: The Challenge of Leading for Equity

    ERIC Educational Resources Information Center

    McCann, Julie McLaughlin

    2012-01-01

    The purpose of this qualitative study was to examine the experience of white principals in understanding their white identity, privilege, and power as they worked to implement socially-just and culturally proficient schools. The findings offer insights into the following questions: 1) How do white school leaders view white identity and the impact,…

  16. "The Smokescreen of Meritocracy": Elite Education in Ireland and the Reproduction of Class Privilege

    ERIC Educational Resources Information Center

    Kennedy, Margaret; Power, Martin J.

    2010-01-01

    Despite generally being neglected in sociological research, the study of elite schooling provides valuable insights into how educational exclusion operates. The predominance of the privately educated in key leadership positions highlights the extent to which such exclusive schools act as conduits of privilege, where they not alone determine a…

  17. Testing the limits of solicitor-client privilege : Lawyers, money laundering, and suspicious transaction reporting

    Microsoft Academic Search

    Stephen Schneider

    2006-01-01

    Purpose – To explore how lawyers are used to launder the proceeds of criminal activity. Regulatory measures that compel legal professionals to report suspected money laundering, and the implications this has for solicitor-client privilege, are also addressed. Design\\/methodology\\/approach – Data were collected from a sample of Royal Canadian Mounted Police proceeds of crime (POC) case files using a standardized questionnaire.

  18. Formats of Classroom Talk for Integrating Everyday and Scientific Discourse: Replacement, Interweaving, Contextual Privileging and Pastiche

    ERIC Educational Resources Information Center

    Renshawa, Peter; Brown, Raymond A. J.

    2007-01-01

    In this paper we identify four formats of classroom talk for integrating everyday and scientific discourse--replacement, interweaving, contextual privileging and pastiche. In the replacement format, progress in understanding is gauged by the extent to which scientific representations replace the more concrete and everyday representations in…

  19. 43 CFR 5511.2-1 - Free use privilege; cutting by agent.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Interior 2 2013-10-01 2013-10-01 false Free use privilege; cutting by agent. 5511.2-1 ...DEPARTMENT OF THE INTERIOR FOREST MANAGEMENT (5000) FREE USE OF TIMBER Free Use Regulations § 5511.2-1 Free use...

  20. 43 CFR 5511.2-1 - Free use privilege; cutting by agent.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Interior 2 2014-10-01 2014-10-01 false Free use privilege; cutting by agent. 5511.2-1 ...DEPARTMENT OF THE INTERIOR FOREST MANAGEMENT (5000) FREE USE OF TIMBER Free Use Regulations § 5511.2-1 Free use...

  1. 43 CFR 5511.2-1 - Free use privilege; cutting by agent.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Interior 2 2012-10-01 2012-10-01 false Free use privilege; cutting by agent. 5511.2-1 ...DEPARTMENT OF THE INTERIOR FOREST MANAGEMENT (5000) FREE USE OF TIMBER Free Use Regulations § 5511.2-1 Free use...

  2. 43 CFR 5511.2-1 - Free use privilege; cutting by agent.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Interior 2 2011-10-01 2011-10-01 false Free use privilege; cutting by agent. 5511.2-1 ...DEPARTMENT OF THE INTERIOR FOREST MANAGEMENT (5000) FREE USE OF TIMBER Free Use Regulations § 5511.2-1 Free use...

  3. KORA recognizes that certain records contain private or privileged information, and the agency is

    E-print Network

    , including but not limited to: Personnel records of public employees Medical treatment records RecordsExceptions KORA recognizes that certain records contain private or privileged information, and the agency is not required to provide access to or copies of those records. The Act lists several exceptions

  4. Unraveling the Threads of White Teachers' Conceptions of Caring: Repositioning White Privilege

    ERIC Educational Resources Information Center

    Pennington, Julie L.; Brock, Cynthia H.; Ndura, Elavie

    2012-01-01

    This study explored two White inservice teachers' understandings of Whiteness in relation to privilege and caring. A yearlong professional development set of courses used a multimodal construction of three significant course experiences designed to reposition Whiteness and illuminate White teachers' predisposition to care for their students in…

  5. Withdrawal of Pregnancy Declaration Form All information on this form will be kept privileged and confidential.

    E-print Network

    Wechsler, Risa H.

    Withdrawal of Pregnancy Declaration Form All information on this form will be kept privileged and confidential. Part 1 ­ To be completed by worker I am withdrawing my previous declaration of pregnancy restrictions imposed on me as a result of my pregnancy, and to the removal of additional dosimeters. I also

  6. A Review of Parliamentary Privilege with an Approach to Iranian Legal System

    ERIC Educational Resources Information Center

    Habibzadeh, Mohammad Ja'far; Modjab, Seyed Doraid mousavi

    2006-01-01

    The necessity of immunity of parliament and its Members has led to determine and assure particular privilege in the Constitutions or ordinary laws in the great majority of countries. This legal institution is to provide freedom of speech and to maintain the independence of representatives in the exercise of their duties without undue interference…

  7. Rapid and Convenient Synthesis of the 1,4-Dihydropyridine Privileged Structure

    ERIC Educational Resources Information Center

    Cheung, Lawrence L. W.; Styler, Sarah A.; Dicks, Andrew P.

    2010-01-01

    A short, semi-microscale synthesis of two 1,4-dihydropyridine drug analogues via a Hantzsch reaction is described, which is appropriate for a second-year undergraduate organic laboratory. Products are specifically chosen to highlight the biological relevance of this compound type while introducing the notion of a privileged structure.…

  8. Effects of Resources, Inequality, and Privilege Bias on Achievement: Country, School, and Student Level Analyses

    ERIC Educational Resources Information Center

    Chiu, Ming Ming; Khoo, Lawrence

    2005-01-01

    This study examined how resources, distribution inequality, and biases toward privileged students affected academic performance. Fifteen-year-olds from 41 countries completed a questionnaire and tests in mathematics, reading, and science. Multilevel regression analyses showed that students scored higher in all subjects when they had more resources…

  9. Annual Report and Accounts 2005 I feel privileged to be leading

    E-print Network

    Miall, Chris

    's development. A particular strength that is apparent when reading this report is the quality and diversityAnnual Report and Accounts 2005 I feel privileged to be leading colleagues who ensure accounts 37 #12;Annual Report and Accounts 2004­05 3 from the Vice-Chancellor Welcome This was the year

  10. Assessing the Learning of White Students on Themes of White Privilege & Racism

    ERIC Educational Resources Information Center

    Heinze, Peter; DeCandia, Gabriela

    2011-01-01

    In an earlier article appearing in "Multicultural Education" (Volume 16, Number 1, Fall 2008) a number of pedagogical techniques were presented for teaching White students about White privilege and racism (Heinze, 2008). That article emphasized that racism exists along a continuum and that the instructor needs to examine and disclose his or her…

  11. Muscle satellite cells and endothelial cells: close neighbours and privileged partners.

    E-print Network

    Paris-Sud XI, Université de

    1 Muscle satellite cells and endothelial cells: close neighbours and privileged partners. Christo5GFP-P/+ ) allowing direct muscle satellite cell (SC) visualization indicate that, in addition-myogenesis. Muscle tissue repair is a complex biological process that crucially involves activation of stem cells

  12. 14 CFR 61.429 - May I exercise the privileges of a flight instructor certificate with a sport pilot rating if I...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...2013-01-01 2013-01-01 false May I exercise the privileges of a flight instructor...Sport Pilot Rating § 61.429 May I exercise the privileges of a flight instructor...issued under this part, and you seek to exercise the privileges of a flight...

  13. 14 CFR 61.429 - May I exercise the privileges of a flight instructor certificate with a sport pilot rating if I...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...2012-01-01 2012-01-01 false May I exercise the privileges of a flight instructor...Sport Pilot Rating § 61.429 May I exercise the privileges of a flight instructor...issued under this part, and you seek to exercise the privileges of a flight...

  14. 14 CFR 61.429 - May I exercise the privileges of a flight instructor certificate with a sport pilot rating if I...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...2014-01-01 2014-01-01 false May I exercise the privileges of a flight instructor...Sport Pilot Rating § 61.429 May I exercise the privileges of a flight instructor...issued under this part, and you seek to exercise the privileges of a flight...

  15. 14 CFR 61.429 - May I exercise the privileges of a flight instructor certificate with a sport pilot rating if I...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...2011-01-01 2011-01-01 false May I exercise the privileges of a flight instructor...Sport Pilot Rating § 61.429 May I exercise the privileges of a flight instructor...issued under this part, and you seek to exercise the privileges of a flight...

  16. 14 CFR 61.429 - May I exercise the privileges of a flight instructor certificate with a sport pilot rating if I...

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...2010-01-01 2010-01-01 false May I exercise the privileges of a flight instructor...Sport Pilot Rating § 61.429 May I exercise the privileges of a flight instructor...issued under this part, and you seek to exercise the privileges of a flight...

  17. Enhanced Elliptic Grid Generation

    NASA Technical Reports Server (NTRS)

    Kaul, Upender K. (Editor)

    2007-01-01

    Method and system for generating an elliptic grid in generalized coordinates in two or three dimensions, where one or more decay parameters near a boundary segment of a grid are determined as part of the grid solution, rather than being prescribed initially by a user. The decay parameters may vary with one or more generalized coordinates and determine the rate(s) at which separation distances between adjacent grid lines change as one moves toward or away from a grid boundary segment.

  18. UK Workshop on Grid Security Experiences, Oxford 8th and 9th July 2004 Multilayer Privilege Management for Dynamic Collaborative

    E-print Network

    Kent, University of

    satellite imagery). Being a large project, it would have several work packages involving different parts to their data, e.g. non- military personnel should only be given degraded versions of military sourced images to be able to define several authorization groups (e.g. corresponding to work packages) and specify what data

  19. Grid enabled Service Support Environment - SSE Grid

    Microsoft Academic Search

    Erwin Goor; Martine Paepen

    2010-01-01

    The SSEGrid project is an ESA\\/ESRIN project which started in 2009 and is executed by two Belgian companies, Spacebel and VITO, and one Dutch company, Dutch Space. The main project objectives are the introduction of a Grid-based processing on demand infrastructure at the Image Processing Centre for earth observation products at VITO and the inclusion of Grid processing services in

  20. Off the Grid

    NSDL National Science Digital Library

    Integrated Teaching and Learning Program,

    Students learn and discuss the advantages and disadvantages of renewable and non-renewable energy sources. They also learn about our nation's electric power grid and what it means for a residential home to be "off the grid."

  1. Method of grid generation

    DOEpatents

    Barnette, Daniel W. (Veguita, NM)

    2002-01-01

    The present invention provides a method of grid generation that uses the geometry of the problem space and the governing relations to generate a grid. The method can generate a grid with minimized discretization errors, and with minimal user interaction. The method of the present invention comprises assigning grid cell locations so that, when the governing relations are discretized using the grid, at least some of the discretization errors are substantially zero. Conventional grid generation is driven by the problem space geometry; grid generation according to the present invention is driven by problem space geometry and by governing relations. The present invention accordingly can provide two significant benefits: more efficient and accurate modeling since discretization errors are minimized, and reduced cost grid generation since less human interaction is required.

  2. The soft grid

    E-print Network

    Kardasis, Ari (Ari David)

    2011-01-01

    The grid in architecture is a systematic organization of space. The means that architects use to organize space are, almost by definition, rigid and totalizing. The Cartesian grid, which will serve as the antagonist of the ...

  3. IPG Power Grid Overview

    NASA Technical Reports Server (NTRS)

    Hinke, Thomas

    2003-01-01

    This presentation will describe what is meant by grids and then cover the current state of the IPG. This will include an overview of the middleware that is key to the operation of the grid. The presentation will then describe some of the future directions that are planned for the IPG. Finally the presentation will conclude with a brief overview of the Global Grid Forum, which is a key activity that will contribute to the successful availability of grid components.

  4. Towards a Pervasive Grid

    Microsoft Academic Search

    Vipul Hingne; Anupam Joshi; Timothy W. Finin; Hillol Kargupta; Elias N. Houstis

    2003-01-01

    The increase in the use of mobile & embedded devices, coupled with ad-hoc, short range wireless networking is enabling pervasive computing. This pervasive computing environment and the wired Grid infrastructure can be combined to make the computation and information Grid truly pervasive. This paper identifies some of the interesting research issues and challenges in creating such a pervasive Grid, and

  5. Chimera Grid Tools

    NASA Technical Reports Server (NTRS)

    Chan, William M.; Rogers, Stuart E.; Nash, Steven M.; Buning, Pieter G.; Meakin, Robert

    2005-01-01

    Chimera Grid Tools (CGT) is a software package for performing computational fluid dynamics (CFD) analysis utilizing the Chimera-overset-grid method. For modeling flows with viscosity about geometrically complex bodies in relative motion, the Chimera-overset-grid method is among the most computationally cost-effective methods for obtaining accurate aerodynamic results. CGT contains a large collection of tools for generating overset grids, preparing inputs for computer programs that solve equations of flow on the grids, and post-processing of flow-solution data. The tools in CGT include grid editing tools, surface-grid-generation tools, volume-grid-generation tools, utility scripts, configuration scripts, and tools for post-processing (including generation of animated images of flows and calculating forces and moments exerted on affected bodies). One of the tools, denoted OVERGRID, is a graphical user interface (GUI) that serves to visualize the grids and flow solutions and provides central access to many other tools. The GUI facilitates the generation of grids for a new flow-field configuration. Scripts that follow the grid generation process can then be constructed to mostly automate grid generation for similar configurations. CGT is designed for use in conjunction with a computer-aided-design program that provides the geometry description of the bodies, and a flow-solver program.

  6. 19 CFR 192.13 - Revocation of participants' AES post-departure (Option 4) filing privileges; appeal procedures.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...2013-04-01 false Revocation of participants' AES post-departure (Option 4) filing privileges...Information Through the Automated Export System (AES) § 192.13 Revocation of participants' AES post-departure (Option 4) filing...

  7. 19 CFR 192.13 - Revocation of participants' AES post-departure (Option 4) filing privileges; appeal procedures.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 false Revocation of participants' AES post-departure (Option 4) filing privileges...Information Through the Automated Export System (AES) § 192.13 Revocation of participants' AES post-departure (Option 4) filing...

  8. 19 CFR 192.13 - Revocation of participants' AES post-departure (Option 4) filing privileges; appeal procedures.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 false Revocation of participants' AES post-departure (Option 4) filing privileges...Information Through the Automated Export System (AES) § 192.13 Revocation of participants' AES post-departure (Option 4) filing...

  9. 19 CFR 192.13 - Revocation of participants' AES post-departure (Option 4) filing privileges; appeal procedures.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...2014-04-01 false Revocation of participants' AES post-departure (Option 4) filing privileges...Information Through the Automated Export System (AES) § 192.13 Revocation of participants' AES post-departure (Option 4) filing...

  10. 19 CFR 192.13 - Revocation of participants' AES post-departure (Option 4) filing privileges; appeal procedures.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...2012-04-01 false Revocation of participants' AES post-departure (Option 4) filing privileges...Information Through the Automated Export System (AES) § 192.13 Revocation of participants' AES post-departure (Option 4) filing...

  11. 15 CFR 720.1 - Denial of export privileges for convictions under 18 U.S.C. 229.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...OF INDUSTRY AND SECURITY, DEPARTMENT OF COMMERCE CHEMICAL WEAPONS CONVENTION REGULATIONS DENIAL OF EXPORT PRIVILEGES...possessing, or using, or threatening to use, a chemical weapon; or (b) Assisting or inducing, in any...

  12. B7-H1Induced Apoptosis as a Mechanism of Immune Privilege of Corneal Allografts1

    Microsoft Academic Search

    Junko Hori; Mingcong Wang; Megumi Miyashita; Keiko Tanemoto; Hiroshi Takahashi; Toshitada Takemori; Ko Okumura; Hideo Yagita; Miyuki Azuma

    2006-01-01

    The programmed death-1 (PD-1) costimulatory pathway has been demonstrated to play a role in the regulation of immune responses and peripheral tolerance. We investigated the role of this pathway in establishing an immune privilege status of corneal allografts in mice. B7-H1, but not B7-DC or PD-1, was expressed constitutively in the eye, i.e., cornea, iris-ciliary body, and retina. After corneal

  13. White Privilege, Language Capital and Cultural Ghettoisation: Western High-Skilled Migrants in Taiwan

    Microsoft Academic Search

    Pei-Chia Lan

    2011-01-01

    Drawing on the case of Taiwan, this article looks at high-skilled migration from the West to Asia. I explore how Western high-skilled migrants exert agency to negotiate their positions as non-citizens, privileged others and professional workers. I have coined the term ‘flexible cultural capital conversion’ to describe how English-speaking Westerners convert their native-language skills, as a form of global linguistic

  14. Immune privilege of the CNS is not the consequence of limited antigen sampling

    NASA Astrophysics Data System (ADS)

    Harris, Melissa G.; Hulseberg, Paul; Ling, Changying; Karman, Jozsef; Clarkson, Benjamin D.; Harding, Jeffrey S.; Zhang, Mengxue; Sandor, Adam; Christensen, Kelsey; Nagy, Andras; Sandor, Matyas; Fabry, Zsuzsanna

    2014-03-01

    Central nervous system (CNS) immune privilege is complex, and it is still not understood how CNS antigens are sampled by the peripheral immune system under steady state conditions. To compare antigen sampling from immune-privileged or nonprivileged tissues, we created transgenic mice with oligodendrocyte or gut epithelial cell expression of an EGFP-tagged fusion protein containing ovalbumin (OVA) antigenic peptides and tested peripheral anti-OVA peptide-specific sentinel OT-I and OT-II T cell activation. We report that oligodendrocyte or gut antigens are sampled similarly, as determined by comparable levels of OT-I T cell activation. However, activated T cells do not access the CNS under steady state conditions. These data show that afferent immunity is normally intact as there is no barrier at the antigen sampling level, but that efferent immunity is restricted. To understand how this one-sided surveillance contributes to CNS immune privilege will help us define mechanisms of CNS autoimmune disease initiation.

  15. Grid Computing Lecture - Globus 4.0 grid services

    NSDL National Science Digital Library

    Dr. Clayton Ferner

    2011-07-05

    Grid Computing Lecture~~Globus 4.0 grid services: Using Web services for grid computing, stateful web services, Grid computing standards, Open Grid Services Architecture (OGSA), Web Services Resource Framework (WSRF), programming GT 4.0 grid services, GT 4.0 container.

  16. Which grids are Hamiltonian

    SciTech Connect

    Hedetniemi, S. M.; Hedetniemi, S. T.; Slater, P. J.

    1980-01-01

    A complete grid G/sub m,n/ is a graph having m x n pertices that are connected to form a rectangular lattice in the plane, i.e., all edges of G/sub m,n/ connect vertices along horizontal or vertical lines. A grid is a subgraph of a complete grid. As an illustration, complete grids describe the basic pattern of streets in most cities. This paper examines the existence of Hamiltonian cycles in complete grids and complete grids with one or two vertices removed. It is determined for most values of m,n greater than or equal to 1, which grids G/sub m,n/ - (u) and G/sub m,n/ - (u,v) are Hamiltonian. 12 figures. (RWR)

  17. Understanding The Smart Grid

    SciTech Connect

    NONE

    2007-11-15

    The report provides an overview of what the Smart Grid is and what is being done to define and implement it. The electric industry is preparing to undergo a transition from a centralized, producer-controlled network to a decentralized, user-interactive one. Not only will the technology involved in the electric grid change, but the entire business model of the industry will change too. A major objective of the report is to identify the changes that the Smart Grid will bring about so that industry participants can be prepared to face them. A concise overview of the development of the Smart Grid is provided. It presents an understanding of what the Smart Grid is, what new business opportunities or risks might come about due to its introduction, and what activities are already taking place regarding defining or implementing the Smart Grid. This report will be of interest to the utility industry, energy service providers, aggregators, and regulators. It will also be of interest to home/building automation vendors, information technology vendors, academics, consultants, and analysts. The scope of the report includes an overview of the Smart Grid which identifies the main components of the Smart Grid, describes its characteristics, and describes how the Smart Grid differs from the current electric grid. The overview also identifies the key concepts involved in the transition to the Smart Grid and explains why a Smart Grid is needed by identifying the deficiencies of the current grid and the need for new investment. The report also looks at the impact of the Smart Grid, identifying other industries which have gone through a similar transition, identifying the overall benefits of the Smart Grid, and discussing the impact of the Smart Grid on industry participants. Furthermore, the report looks at current activities to implement the Smart Grid including utility projects, industry collaborations, and government initiatives. Finally, the report takes a look at key technology providers involved in the Smart Grid and provides profiles on them including contact information, company overviews, technology reviews, and key Smart Grid activities.

  18. Trends in life science grid: from computing grid to knowledge grid

    Microsoft Academic Search

    Akihiko Konagaya

    2006-01-01

    Background: Grid computing has great potential to become a standard cyberinfrastructure for life sciences which often require high-performance computing and large data handling which exceeds the computing capacity of a single institution. Results: This survey reviews the latest grid technologies from the viewpoints of computing grid, data grid and knowledge grid. Computing grid technologies have been matured enough to solve

  19. FUTURE POWER GRID INITIATIVE GridPACK: Grid Parallel Advanced

    E-print Network

    in Focus Area Two will use high-throughput data streams produced by projects in Focus Area One Pacific Northwest National Laboratory (509) 375-3899 bruce.palmer@pnnl.gov ABOUT FPGI The Future Power Operations Center (EIOC), the Pacific Northwest National Laboratory's (PNNL) national electric grid research

  20. A grid amplifier

    Microsoft Academic Search

    M. Kim; J. J. Rosenberg; R. P. Smith; J. B. Hacker; M. P. DeLisio; D. B. Rutledge

    1991-01-01

    A 50-MESFET grid amplifier is reported that has a gain of 11 dB at 3.3 GHz. The grid isolates the input from the output by using vertical polarization for the input beam and horizontal polarization for the transmitted output beam. The grid unit cell is a two-MESFET differential amplifier. A simple calibration procedure allows the gain to be calculated from

  1. Cyber Security & Smart Grid

    E-print Network

    Shapiro, J.

    2011-01-01

    Cyber Security & Smart Grid Jonathan Shapiro Texas Institute The Clean Air Through Energy Efficiency (CATEE) Conference Cyber Security & Smart Grid ESL-KT-11-11-23 CATEE 2011, Dallas, Texas, Nov. 7 ? 9, 2011 Cyber Security and The Smart... and communication protocols. ESL-KT-11-11-23 CATEE 2011, Dallas, Texas, Nov. 7 ? 9, 2011 Smart Grid Systems ?Current Cyber Security Issues ? Advanced Metering Infrastructure (AMI) Security ? The wireless devices are used in the smart meters located...

  2. A grid amplifier

    NASA Technical Reports Server (NTRS)

    Kim, Moonil; Weikle, Robert M., II; Hacker, Jonathan B.; Delisio, Michael P.; Rutledge, David B.; Rosenberg, James J.; Smith, R. P.

    1991-01-01

    A 50-MESFET grid amplifier is reported that has a gain of 11 dB at 3.3 GHz. The grid isolates the input from the output by using vertical polarization for the input beam and horizontal polarization for the transmitted output beam. The grid unit cell is a two-MESFET differential amplifier. A simple calibration procedure allows the gain to be calculated from a relative power measurement. This grid is a hybrid circuit, but the structure is suitable for fabrication as a monolithic wafer-scale integrated circuit, particularly at millimeter wavelengths.

  3. The scintillating grid illusion.

    PubMed

    Schrauf, M; Lingelbach, B; Wist, E R

    1997-04-01

    Disk-shaped luminance increments were added to the intersections of a Hermann grid consisting of medium grey bars on a black background. Illusory spots, darker than the background, were perceived as flashing within the white disks with each flick of the eye. This striking phenomenon may be referred to as the scintillating grid illusion. We determined the conditions necessary for cancelling the Hermann grid illusion, as well as the luminance requirements and the size ratio between disks and bars that elicits the scintillation effect. The fact that scanning eye movements are necessary to produce the scintillation effect sets it apart from the Hermann grid illusion. PMID:9196721

  4. Enhanced Elliptic Grid Generation

    NASA Technical Reports Server (NTRS)

    Kaul, Upender K.

    2007-01-01

    An enhanced method of elliptic grid generation has been invented. Whereas prior methods require user input of certain grid parameters, this method provides for these parameters to be determined automatically. "Elliptic grid generation" signifies generation of generalized curvilinear coordinate grids through solution of elliptic partial differential equations (PDEs). Usually, such grids are fitted to bounding bodies and used in numerical solution of other PDEs like those of fluid flow, heat flow, and electromagnetics. Such a grid is smooth and has continuous first and second derivatives (and possibly also continuous higher-order derivatives), grid lines are appropriately stretched or clustered, and grid lines are orthogonal or nearly so over most of the grid domain. The source terms in the grid-generating PDEs (hereafter called "defining" PDEs) make it possible for the grid to satisfy requirements for clustering and orthogonality properties in the vicinity of specific surfaces in three dimensions or in the vicinity of specific lines in two dimensions. The grid parameters in question are decay parameters that appear in the source terms of the inhomogeneous defining PDEs. The decay parameters are characteristic lengths in exponential- decay factors that express how the influences of the boundaries decrease with distance from the boundaries. These terms govern the rates at which distance between adjacent grid lines change with distance from nearby boundaries. Heretofore, users have arbitrarily specified decay parameters. However, the characteristic lengths are coupled with the strengths of the source terms, such that arbitrary specification could lead to conflicts among parameter values. Moreover, the manual insertion of decay parameters is cumbersome for static grids and infeasible for dynamically changing grids. In the present method, manual insertion and user specification of decay parameters are neither required nor allowed. Instead, the decay parameters are determined automatically as part of the solution of the defining PDEs. Depending on the shape of the boundary segments and the physical nature of the problem to be solved on the grid, the solution of the defining PDEs may provide for rates of decay to vary along and among the boundary segments and may lend itself to interpretation in terms of one or more physical quantities associated with the problem.

  5. Grid Computing Security Lecture

    NSDL National Science Digital Library

    Dr. Clayton Ferner

    2011-07-05

    Grid Computing Lecture~~Security: secure connection, authentication and authorization, password authentication, symmetric (secret) and asymmetric (public/private) key cyptography, RSA algorithm.

  6. Health/ill-health transition in less privileged populations: what does the future hold?

    PubMed

    Walker, A R; Segal, I

    1997-01-01

    Changes in health/ill-health in response to alterations in environmental factors are recognised. While the phenomenon has been extensively investigated in Western populations, the extent and sequelae of transitions in less privileged populations are less well appreciated. Examples of changes are given, first for Western populations as a comparison but, more particularly, for rural and urban Africans, for African-Americans, and also for Australian Aboriginals, whose mortality rates for chronic degenerative diseases now exceed those of white Australians. Discussion of the likely future of these populations indicates that a lessening of proneness to Western diseases is unlikely. PMID:9263967

  7. Software models for Smart Grid

    Microsoft Academic Search

    Anjali Singhal; R. P. Saxena

    2012-01-01

    Smart grid technology is progressing worldwide. Various Countries are investing to transform their traditional power grid to Smart grid. They have started realigning their organization to support a Smart grid vision. At this initial stage some software models are required to quantifiably evaluate, monitor the progress and plan for the realization of a smart grid. At present some models like

  8. Grid Database Service Specification

    Microsoft Academic Search

    James Clerk Maxwell; Susan Malaika; Gavin McCance; James Magowan; Norman W. Paton; Greg Riccardi

    2002-01-01

    Data management systems are central to many applications across multiple domains, and play a significant role in many others. Web services provide implementation neutral facilities for describing, invoking and orchestrating collections of networked resources. The Open Grid Services Architecture (OGSA) extends Web Services with consistent interfaces for creating, managing and exchanging information among Grid Services, which are dynamic computational artefacts

  9. Security for grids

    SciTech Connect

    Humphrey, Marty; Thompson, Mary R.; Jackson, Keith R.

    2005-08-14

    Securing a Grid environment presents a distinctive set of challenges. This paper groups the activities that need to be secured into four categories: naming and authentication; secure communication; trust, policy, and authorization; and enforcement of access control. It examines the current state of the art in securing these processes and introduces new technologies that promise to meet the security requirements of Grids more completely.

  10. The Scintillating Grid Illusion

    Microsoft Academic Search

    MICHAEL SCHRAUF; BERND LINGELBACH; EUGENE R WIST

    1997-01-01

    Disk-shaped luminance increments were added to the intersections of a Hermann grid consisting of medium grey bars on a black background. Illusory spots, darker than the background, were perceived as flashing within the white disks with each flick of the eye. This striking phenomenon may be referred to as the scintillating grid illusion. We determined the conditions necessary for cancelling

  11. Geometric grid generation

    NASA Technical Reports Server (NTRS)

    Ives, David

    1995-01-01

    This paper presents a highly automated hexahedral grid generator based on extensive geometrical and solid modeling operations developed in response to a vision of a designer-driven one day turnaround CFD process which implies a designer-driven one hour grid generation process.

  12. Smart Grid security technology

    Microsoft Academic Search

    Anthony R. Metke; Randy L. Ekl

    2010-01-01

    The security of the United States and the way of life of its citizens is dependant on the availability of the North American power grid. Much of the technology currently in use by the grid is outdated and in many cases unreliable. There have been three major blackouts in the past nine years. Further, the reliance on old technology leads

  13. Decentral Smart Grid Control

    NASA Astrophysics Data System (ADS)

    Schäfer, Benjamin; Matthiae, Moritz; Timme, Marc; Witthaut, Dirk

    2015-01-01

    Stable operation of complex flow and transportation networks requires balanced supply and demand. For the operation of electric power grids—due to their increasing fraction of renewable energy sources—a pressing challenge is to fit the fluctuations in decentralized supply to the distributed and temporally varying demands. To achieve this goal, common smart grid concepts suggest to collect consumer demand data, centrally evaluate them given current supply and send price information back to customers for them to decide about usage. Besides restrictions regarding cyber security, privacy protection and large required investments, it remains unclear how such central smart grid options guarantee overall stability. Here we propose a Decentral Smart Grid Control, where the price is directly linked to the local grid frequency at each customer. The grid frequency provides all necessary information about the current power balance such that it is sufficient to match supply and demand without the need for a centralized IT infrastructure. We analyze the performance and the dynamical stability of the power grid with such a control system. Our results suggest that the proposed Decentral Smart Grid Control is feasible independent of effective measurement delays, if frequencies are averaged over sufficiently large time intervals.

  14. The costume of Shangri-La: thoughts on white privilege, cultural appropriation, and anti-asian racism.

    PubMed

    Kleisath, C Michelle

    2014-01-01

    This piece poses cultural appropriation as an undertheorized aspect of white privilege in White Privilege Studies. By way of narrative exploration, it asserts that a paucity of scholarship on Orientalism and anti-Asian racism has created a gap in White Privilege Studies that curbs its radical transformative potential. It argues for the value of a structural and historically focused lens for understanding the issue of cultural appropriation, and extends questions of culture and race relations beyond the borders of the United States. It also explores the complex ways that interracial and transnational relationships can influence white racial identity, and illustrates the disruptive potential that queer interracial relationships can offer to dominant historical patterns of white behavior. PMID:24641075

  15. I want my information back: evidentiary privilege following the partial birth abortion cases.

    PubMed

    Silfen, Molly

    2005-01-01

    In February 2004, privacy concerns captured the public's attention when the United States government, the defendant in a lawsuit challenging the constitutionality of the Partial-Birth Abortion Ban Act of 2003, sought to subpoena the medical records of patients receiving intact dilation and extraction (also known as "partial birth") abortions in six different hospitals and six Planned Parenthood centers across the country. Three different federal court cases explored the enforceability of the subpoenas. This Note explores the rationales used by the three courts in examining the privacy interests involved. It then suggests some possible solutions for systematically protecting medical information: a legal solution; a technological solution; and a combination of both. The legal solution involves creating a federal physician-patient privilege, similar to that enforced in many states and parallel to the federal psychotherapist-patient privilege. The technological solution requires the complicity of multiple jurisdictions to verify the necessity of revealing medical information. Taken together, these solutions can assist the government in protecting its citizens by imposing more checks on itself. PMID:15968942

  16. Altered Tryptophan Metabolism as a Paradigm for Good and Bad Aspects of Immune Privilege in Chronic Inflammatory Diseases

    PubMed Central

    Li, Lingqian; Huang, Lei; Lemos, Henrique P.; Mautino, Mario; Mellor, Andrew L.

    2012-01-01

    The term “immune privilege” was coined to describe weak immunogenicity (hypo-immunity) that manifests in some transplant settings. We extended this concept to encompass hypo-immunity that manifests at local sites of inflammation relevant to clinical diseases. Here, we focus on emerging evidence that enhanced tryptophan catabolism is a key metabolic process that promotes and sustains induced immune privilege, and discuss the implications for exploiting this knowledge to improve treatments for hypo-immune and hyper-immune syndromes using strategies to manipulate tryptophan metabolism. PMID:22593757

  17. Grid-independent LES

    NASA Astrophysics Data System (ADS)

    Bose, Sanjeeb; Moin, Parviz

    2009-11-01

    Grid independent turbulent statistics are obtained in a planar channel flow at Re?= 640 by explicit filtering the governing equations for LES. Three dimensional filters (Vasilyev et al., JCP, 1998) are utilized such that commutation error is the same order as the truncation error of the fourth-order, conservative finite difference scheme (Morinishi et al., JCP, 1998). Several calculations are performed with a fixed filter width, but with varying grid resolutions. The grid-independent mean velocity profile is in good agreement with the experimental data of Hussain & Reynolds (1970). The rms velocity profiles and one-dimensional energy spectra are compared with previous LES results and the unfiltered DNS of Abe et al. (2001), and show convergence toward a grid-independent profile. Ensemble averaged contributions of the dynamic Smagorinsky subgrid model to the Reynolds shear stress have also converged to a grid-independent profile across all grid resolutions. The effect of effective filter shape on the convergence of turbulence statistics will be discussed. Progress in the development of grid-independent LES for complex geometries with unstructured meshes will be presented.

  18. The TeraGrid

    NSDL National Science Digital Library

    Catlett, Charlie.

    2002-01-01

    A project of the National Science Foundation, the TeraGrid is "a multi-year effort to build and deploy the world's largest, fastest, distributed infrastructure for open scientific research." This paper, published in September 2002, describes the activities and ongoing projects that will ultimately lead to the project's completion. TeraGrid, as the name implies, is based on principles of grid computing. It will eventually consist of a massive network of computers spread out over several sites that can work simultaneously and independently on scientific applications. Many specifications and design objectives are outlined in the paper, offering some insight into the ambitious project.

  19. Christian Privilege and the Promotion of “Secular” and Not-So “Secular” Mainline Christianity in Public Schooling and in the Larger Society

    Microsoft Academic Search

    Warren J. Blumenfeld

    2006-01-01

    Using the conceptual organizers of Young's (1990) “faces of oppression,” and Hardiman and Jackson's (1997) “levels of oppression,” this essay investigates the concept of domination and subordination, Christian privilege, and the subtle and not-so subtle promotion of Christianity in public schooling and in the larger United States society. The author explores a number of areas related to Christian privilege and

  20. myGrid: personalised bioinformatics on the information grid

    Microsoft Academic Search

    Robert D. Stevens; Alan J. Robinson; Carole A. Goble

    2003-01-01

    Motivation: The my Grid project aims to exploit Grid technology, with an emphasis on the Information Grid, and provide middleware layers that make it appropriate for the needs of bioinformatics. my Grid is building high level services for data and application integration such as resource discovery, workflow enactment and distributed query processing. Additional services are provided to support the scientific

  1. Exploiting the Computational Grid Lecture 1 Globus and the Grid

    E-print Network

    & procedures ­ security protocols must be widely applicable, standard and well tested and understood. · GSI Services ­ Grid Resource Information Protocol (GRIP) · Data Management ­ Grid FTP · Security is essential is the leading toolkit · Open source · Implements standard grid protocols and APIs · Grid-enabled tools

  2. The gridded electromagnet probe

    E-print Network

    Shadman, K. (Khashayar), 1972-

    2003-01-01

    We attempted to measure the anisotropy in the electron distribution function in magnetized plasma by exploiting the adiabatic invariance of the electron's magnetic moment with a probe comprising a grid, a collector, and ...

  3. Distributed Adaptive Grid Hierarchy

    NSDL National Science Digital Library

    DAGH (which stands for Distributed Adaptive Grid Hierarchy) was developed as a computational toolkit for the Binary Black Hole NSF Grand Challenge Project. It provides the framework to solve systems of partial differential equations using adaptive finite difference methods.

  4. IDL Grid Web Portal

    NASA Astrophysics Data System (ADS)

    Massimino, P.; Costa, A.

    2008-08-01

    Image Data Language is a software for data analysis, visualization and cross-platform application development. The potentiality of IDL is well-known in the academic scientific world, especially in the astronomical environment where thousands of procedures are developed by using IDL. The typical use of IDL is the interactive mode but it is also possible to run IDL programs that do not require any interaction with the user, submitting them in batch or background modality. Through the interactive mode the user immediately receives images or other data produced in the running phase of the program; in batch or background mode, the user will have to wait for the end of the program, sometime for many hours or days to obtain images or data that IDL produced as output: in fact in Grid environment it is possible to access to or retrieve data only after completion of the program. The work that we present gives flexibility to IDL procedures submitted to the Grid computer infrastructure. For this purpose we have developed an IDL Grid Web Portal to allow the user to access the Grid and to submit IDL programs granting a full job control and the access to images and data generated during the running phase, without waiting for their completion. We have used the PHP technology and we have given the same level of security that Grid normally offers to its users. In this way, when the user notices that the intermediate program results are not those expected, he can stop the job, change the parameters to better satisfy the computational algorithm and resubmit the program, without consuming the CPU time and other Grid resources. The IDL Grid Web Portal allows you to obtain IDL generated images, graphics and data tables by using a normal browser. All conversations from the user and the Grid resources occur via Web, as well as authentication phases. The IDL user has not to change the program source much because the Portal will automatically introduce the appropriate modification before submitting the IDL program to the Grid. When the user wishes, he will be able to check the status of his program and outputs, if any, because the Portal will assign the users a specific and univocal session identification number. This Web portal runs in the Trinacria Grid Virtual Laboratory and fully exploits the power of this grid in terms of CPU and data storage.

  5. Spectra of Grid Turbulence

    Microsoft Academic Search

    Mahinder S. Uberoi; Stanley Wallis

    1969-01-01

    Energy spectra of the longitudinal and lateral turbulent velocities are measured behind grids of different geometries; the isotropic relation is not satisfied. Energy-dissipating eddies are more nearly isotropic than energy-containing eddies. Spectra of the energy-containing eddies and their deviation from isotropy depend on the grid geometry. Various microscales are measured to determine the anisotropy of the energy-dissipating eddies. The error

  6. Random array grid collimator

    DOEpatents

    Fenimore, E.E.

    1980-08-22

    A hexagonally shaped quasi-random no-two-holes touching grid collimator. The quasi-random array grid collimator eliminates contamination from small angle off-axis rays by using a no-two-holes-touching pattern which simultaneously provides for a self-supporting array increasng throughput by elimination of a substrate. The presentation invention also provides maximum throughput using hexagonally shaped holes in a hexagonal lattice pattern for diffraction limited applications. Mosaicking is also disclosed for reducing fabrication effort.

  7. Adaptive grid generation

    NASA Technical Reports Server (NTRS)

    Eiseman, Peter R.

    1987-01-01

    The fundamental principles of adaptive grid generation for the numerical analysis of physical phenomena described by systems of partial differential equations are examined in an analytical review. Topics addressed include weight functions, equidistribution in one dimension, the specification of coefficients in the linear weight, the attraction to a given grid on a curve, evolutionary forces, and metric notation. Consideration is given to curve-by-curve methods, finite-volume methods, variational methods, and temporal aspects.

  8. MicroGrids

    Microsoft Academic Search

    R. H. Lasseter

    2002-01-01

    The MicroGrid concept assumes a cluster of loads and microsources (<100 kW) operating as a single controllable system that provides both power and heat to its local area. This concept provides a new paradigm for defining the operation of distributed generation. To the utility the MicroGrid can be thought of as a controlled cell of the power system. For example

  9. Generation of orthogonal grids by boundary grid relaxation

    NASA Technical Reports Server (NTRS)

    Nakamura, S.

    1983-01-01

    Two elliptic grid generation schemes that yield orthogonal grids are presented (FGBR and UBGR). With the UBGR scheme, the grid points on the flow boundaries are automatically determined by the algorithm, while the FBGR scheme at most one half of the boundary grid points may be prespecified and the remainder of boundary grid points are determined automatically. Numerical examples show their capability of easy stretching, clustering and shock fitting while maintaining orthogonality of grid. The present method can be implemented into existing elliptic grid generation programs with relatively minor modifications.

  10. Exploring Hypersonic, Unstructured-Grid Issues through Structured Grids

    NASA Technical Reports Server (NTRS)

    Mazaheri, Ali R.; Kleb, Bill

    2007-01-01

    Pure-tetrahedral unstructured grids have been shown to produce asymmetric heat transfer rates for symmetric problems. Meanwhile, two-dimensional structured grids produce symmetric solutions and as documented here, introducing a spanwise degree of freedom to these structured grids also yields symmetric solutions. The effects of grid skewness and other perturbations of structured-grids are investigated to uncover possible mechanisms behind the unstructured-grid solution asymmetries. By using controlled experiments around a known, good solution, the effects of particular grid pathologies are uncovered. These structured-grid experiments reveal that similar solution degradation occurs as for unstructured grids, especially for heat transfer rates. Non-smooth grids within the boundary layer is also shown to produce large local errors in heat flux but do not affect surface pressures.

  11. TeraGrid

    NSDL National Science Digital Library

    TeraGrid is an open scientific discovery infrastructure combining leadership class resources at nine partner sites to create an integrated, persistent computational resource. Using high-performance network connections, the TeraGrid integrates high-performance computers, data resources and tools, and high-end experimental facilities around the country. These integrated resources include more than 102 teraflops of computing capability and more than 15 petabytes (quadrillions of bytes) of online and archival data storage with rapid access and retrieval over high-performance networks. Through the TeraGrid, researchers can access over 100 discipline-specific databases. With this combination of resources, the TeraGrid is the world's largest, most comprehensive distributed cyberinfrastructure for open scientific research. TeraGrid is coordinated through the Grid Infrastructure Group (GIG) at the University of Chicago, working in partnership with the Resource Provider sites: Indiana University, Oak Ridge National Laboratory, National Center for Supercomputing Applications, Pittsburgh Supercomputing Center, Purdue University, San Diego Supercomputer Center, Texas Advanced Computing Center, University of Chicago/Argonne National Laboratory, and the National Center for Atmospheric Research.

  12. GridLab: Enabling Applications on the Grid

    Microsoft Academic Search

    Gabrielle Allen; Dave Angulo; Tom Goodale; Thilo Kielmann; André Merzky; Jarek Nabrzyski; Juliusz Pukacki; Michael Russell; Thomas Radke; Edward Seidel; John Shalf; Ian J. Taylor

    2002-01-01

    Grid technology is widely emerging. Still, there is an eminent shortage of real Grid users, due to the absence of two important\\u000a catalysts: First, a widely accepted vision on how applications can substantially benefit from Grids, and second a toolkit\\u000a of higher-level Grid services, tailored to application needs. The GridLab project aims to provide fundamentally new capabilities\\u000a for applications to

  13. Arc Length Based Grid Distribution For Surface and Volume Grids

    NASA Technical Reports Server (NTRS)

    Mastin, C. Wayne

    1996-01-01

    Techniques are presented for distributing grid points on parametric surfaces and in volumes according to a specified distribution of arc length. Interpolation techniques are introduced which permit a given distribution of grid points on the edges of a three-dimensional grid block to be propagated through the surface and volume grids. Examples demonstrate how these methods can be used to improve the quality of grids generated by transfinite interpolation.

  14. Determinants of lottery participation for big game hunting privileges: Resident versus nonresident elk hunters in New Mexico

    Microsoft Academic Search

    David O. Scrogin; Robert P. Berrens

    1999-01-01

    The objective of this study is to investigate the statistical determinants of lottery applications for New Mexico elk hunting licenses from three different groups: (1) residents, (2) guided nonresidents, and (3) nonguided nonresidents. Relatively scant empirical information is available to game managers on the statistical determinants of lottery applications for elk hunting privileges, and what is available does not distinguish

  15. Situating the Discourses of Privilege and Marginalization in the Lives of Two East Asian Women Teachers of English

    ERIC Educational Resources Information Center

    Park, Gloria

    2015-01-01

    Using a narrative approach (i.e., Clandinin and Connelly 2000; Dewey 1938 [1963]), this article explores the identity constructions and negotiations of two East Asian women teachers of English in MATESOL programs. The focus of this article explores the ways in which the two women's privileged experiences coexisted with issues of…

  16. Multicultural Education and the Notion of Privilege: An Examination of White Student Attitude Shift and Identity Development

    ERIC Educational Resources Information Center

    Hammond, Cheree

    2009-01-01

    This study explored the process of White attitude change around the notion of White privilege spanning the duration of a multicultural education course. Making use of constructivist grounded theory, nineteen intensive, semi-structured interviews were completed with 5 White undergraduate students enrolled in one of two sections of a multicultural…

  17. Child Abuse Reporting Laws and Attorney-Client Privilege: Ethical Dilemmas and Practical Suggestions for the Forensic Psychologist

    Microsoft Academic Search

    Susan R. Hall

    2006-01-01

    This article explores the legal, ethical, and moral dilemmas faced by forensic psychologists who, during an evaluation for an attorney, discover information that would warrant making a child abuse report. It attempts to assist forensic psychologists with navigating the question of whether attorney-client privilege overrides their duty to report suspected child abuse. Through a review of the legal and psychological

  18. A Java commodity grid kit

    Microsoft Academic Search

    Gregor Von Laszewski; Ian T. Foster; Jarek Gawor

    2001-01-01

    In this paper we report on the features of the Java Commodity Grid Kit. The Java CoG Kit provides middleware for accessing Grid functionality from the Java framework. Java CoG Kit middleware is general enough to design a variety of advanced Grid applications with quite different user requirements. Access to the Grid is established via Globus protocols, allowing the Java

  19. Contiguous gridded gun development program

    Microsoft Academic Search

    G. Huffman

    1980-01-01

    A gridded gun, suitable for operating megawatt level linear beam tubes, has been designed and tested at lower levels in a beam analyzer. The new gun features a shadow grid in contact with the cathode surface. A major goal was to achieve low control grid interception. Guns with contiguous grid systems are in common use in low and medium power

  20. Smart Grid Integration Laboratory

    SciTech Connect

    Wade Troxell

    2011-09-30

    The initial federal funding for the Colorado State University Smart Grid Integration Laboratory is through a Congressionally Directed Project (CDP), DE-OE0000070 Smart Grid Integration Laboratory. The original program requested in three one-year increments for staff acquisition, curriculum development, and instrumentation â?? all which will benefit the Laboratory. This report focuses on the initial phase of staff acquisition which was directed and administered by DOE NETL/ West Virginia under Project Officer Tom George. Using this CDP funding, we have developed the leadership and intellectual capacity for the SGIC. This was accomplished by investing (hiring) a core team of Smart Grid Systems engineering faculty focused on education, research, and innovation of a secure and smart grid infrastructure. The Smart Grid Integration Laboratory will be housed with the separately funded Integrid Laboratory as part of CSUâ??s overall Smart Grid Integration Center (SGIC). The period of performance of this grant was 10/1/2009 to 9/30/2011 which included one no cost extension due to time delays in faculty hiring. The Smart Grid Integration Laboratoryâ??s focus is to build foundations to help graduate and undergraduates acquire systems engineering knowledge; conduct innovative research; and team externally with grid smart organizations. Using the results of the separately funded Smart Grid Workforce Education Workshop (May 2009) sponsored by the City of Fort Collins, Northern Colorado Clean Energy Cluster, Colorado State University Continuing Education, Spirae, and Siemens has been used to guide the hiring of faculty, program curriculum and education plan. This project develops faculty leaders with the intellectual capacity to inspire its students to become leaders that substantially contribute to the development and maintenance of Smart Grid infrastructure through topics such as: (1) Distributed energy systems modeling and control; (2) Energy and power conversion; (3) Simulation of electrical power distribution system that integrates significant quantities of renewable and distributed energy resources; (4) System dynamic modeling that considers end-user behavior, economics, security and regulatory frameworks; (5) Best practices for energy management IT control solutions for effective distributed energy integration (including security with the underlying physical power systems); (6) Experimental verification of effects of various arrangements of renewable generation, distributed generation and user load types along with conventional generation and transmission. Understanding the core technologies for enabling them to be used in an integrated fashion within a distribution network remains is a benefit to the future energy paradigm and future and present energy engineers.

  1. The drive to innovation: The privileging of science and technology knowledge production in Canada

    NASA Astrophysics Data System (ADS)

    Cauchi, Laura

    This dissertation project explored the privileging of knowledge production in science and technology as a Canadian national economic, political and social strategy. The project incorporated the relationship between nation-state knowledge production and how that knowledge is then systematically evaluated, prioritized and validated by systems of health technology assessment (HTA). The entry point into the analysis and this dissertation project was the Scientific Research and Experimental Design (SR&ED) federal tax incentive program as the cornerstone of science and technology knowledge production in Canada. The method of inquiry and analysis examined the submission documents submitted by key stakeholders across the country, representing public, private and academic standpoints, during the public consultation process conducted from 2007 to 2008 and how each of these standpoints is hooked into the public policy interests and institutional structures that produce knowledge in science and technology. Key public meetings, including the public information sessions facilitated by the Canada Revenue Agency and private industry conferences, provided context and guidance regarding the current pervasive public and policy interests that direct and drive the policy debates. Finally, the "Innovation Canada: A Call to Action Review of Federal Support to Research and Development: Expert Panel Report," commonly referred to as "The Jenkins Report" (Jenkins et al., 2011), was critically evaluated as the expected predictor of future public policy changes associated with the SR&ED program and the future implications for the production of knowledge in science and technology. The method of inquiry and analytical lens was a materialist approach that drew on the inspiring frameworks of such scholars as Dorothy Smith, Michel Foucault, Kaushik Sunder Rajan, Melinda Cooper, and, Gilles Deleuze. Ultimately, I strove to illuminate the normalizing force and power of knowledge production in science and technology, and the disciplines and structures that encompass it and are hooked into it where the privileging of such knowledge becomes hegemonic within and by the regimes of knowledge production that created them.

  2. Grid-Based Workflow Management

    Microsoft Academic Search

    Daniel Becker; Morris Riedel; Achim Streit; Felix Wolf

    Many Grid infrastructures have begun to offer services to end-users during the past several years with an increasing number of complex scientific applications and software tools that require seamless access to different Grid resources via Grid middleware during one workflow. End-users of the rather hpc-driven deisa Grid infrastructure take not only advantage of Grid workflow management capabilities for massively parallel

  3. An Approach for Dynamic Grids

    NASA Technical Reports Server (NTRS)

    Slater, John W.; Liou, Meng-Sing; Hindman, Richard G.

    1994-01-01

    An approach is presented for the generation of two-dimensional, structured, dynamic grids. The grid motion may be due to the motion of the boundaries of the computational domain or to the adaptation of the grid to the transient, physical solution. A time-dependent grid is computed through the time integration of the grid speeds which are computed from a system of grid speed equations. The grid speed equations are derived from the time-differentiation of the grid equations so as to ensure that the dynamic grid maintains the desired qualities of the static grid. The grid equations are the Euler-Lagrange equations derived from a variational statement for the grid. The dynamic grid method is demonstrated for a model problem involving boundary motion, an inviscid flow in a converging-diverging nozzle during startup, and a viscous flow over a flat plate with an impinging shock wave. It is shown that the approach is more accurate for transient flows than an approach in which the grid speeds are computed using a finite difference with respect to time of the grid. However, the approach requires significantly more computational effort.

  4. NREL Smart Grid Projects

    SciTech Connect

    Hambrick, J.

    2012-01-01

    Although implementing Smart Grid projects at the distribution level provides many advantages and opportunities for advanced operation and control, a number of significant challenges must be overcome to maintain the high level of safety and reliability that the modern grid must provide. For example, while distributed generation (DG) promises to provide opportunities to increase reliability and efficiency and may provide grid support services such as volt/var control, the presence of DG can impact distribution operation and protection schemes. Additionally, the intermittent nature of many DG energy sources such as photovoltaics (PV) can present a number of challenges to voltage regulation, etc. This presentation provides an overview a number of Smart Grid projects being performed by the National Renewable Energy Laboratory (NREL) along with utility, industry, and academic partners. These projects include modeling and analysis of high penetration PV scenarios (with and without energy storage), development and testing of interconnection and microgrid equipment, as well as the development and implementation of advanced instrumentation and data acquisition used to analyze the impacts of intermittent renewable resources. Additionally, standards development associated with DG interconnection and analysis as well as Smart Grid interoperability will be discussed.

  5. Information Power Grid Posters

    NASA Technical Reports Server (NTRS)

    Vaziri, Arsi

    2003-01-01

    This document is a summary of the accomplishments of the Information Power Grid (IPG). Grids are an emerging technology that provide seamless and uniform access to the geographically dispersed, computational, data storage, networking, instruments, and software resources needed for solving large-scale scientific and engineering problems. The goal of the NASA IPG is to use NASA's remotely located computing and data system resources to build distributed systems that can address problems that are too large or complex for a single site. The accomplishments outlined in this poster presentation are: access to distributed data, IPG heterogeneous computing, integration of large-scale computing node into distributed environment, remote access to high data rate instruments,and exploratory grid environment.

  6. O`ahu Grid Study: Validation of Grid Models

    E-print Network

    O`ahu Grid Study: Validation of Grid Models Prepared for the U.S. Department of Energy Office............................................................................................................. 1 2 Model Validation .................................................................................................... 1 2.1 Production Cost Modeling (GE MAPSTM Analysis) ......................................... 2 2

  7. Social Informatics Data Grid

    Microsoft Academic Search

    Bennett Bertenthal; Robert Grossman; David Hanley; Mark Hereld; Sarah Kenny; Gina-Anne Levow; Michael E. Papka; Stephen W. Porges; Kavithaa Rajavenkateshwaran; Rick Stevens; Thomas D. Uram; Wenjun Wu

    The Social Informatics Data Grid is a new infrastructure designed to transform how social and behavioral scientists collect and annotate data, collaborate and share data, and analyze and mine large data repositories. An important goal of the project is to be compatible with existing databases and tools that support the sharing, storage and retrieval of archival data sets. It is

  8. APEC Smart Grid Initiative

    SciTech Connect

    Bloyd, Cary N.

    2012-03-01

    This brief paper describes the activities of the Asia Pacific Economic Cooperation (APEC) Smart Grid Initiative (ASGI) which is being led by the U.S. and developed by the APEC Energy Working Group. In the paper, I describe the origin of the initiative and briefly mention the four major elements of the initiative along with existing APEC projects which support it.

  9. Grid of the future

    Microsoft Academic Search

    Ali Ipakchi; Farrokh Albuyeh

    2009-01-01

    Many believe the electric power system is undergoing a profound change driven by a number of needs. There's the need for environmental compliance and energy conservation. We need better grid reliability while dealing with an aging infrastructure. And we need improved operational effi ciencies and customer service. The changes that are happening are particularly signifi cant for the electricity distribution

  10. Piloting the smart grid

    SciTech Connect

    Faruqui, Ahmad; Hledik, Ryan; Sergici, Sanem

    2009-08-15

    To address the likely impact of the smart grid on customers, utilities, and society as a whole, it may be necessary to conduct a pilot. When should a pilot be conducted and how should it be conducted? What validity criteria should the pilot satisfy? Here are issues to consider. (author)

  11. Unlocking the smart grid

    SciTech Connect

    Rokach, Joshua Z.

    2010-10-15

    The country has progressed in a relatively short time from rotary dial phones to computers, cell phones, and iPads. With proper planning and orderly policy implementation, the same will happen with the Smart Grid. Here are some suggestions on how to proceed. (author)

  12. Educating the Smart Grid

    Microsoft Academic Search

    J. S. Katz

    2008-01-01

    The smart grid is entering the era of practical pilot projects and readiness to scale. This has been the result of a movement in technology, regulation, and a learning process for all involved. This paper discusses several areas of experience with the \\

  13. Journal of Grid Computing From Grids to Cloud Federations

    E-print Network

    Krintz, Chandra

    1 23 Journal of Grid Computing From Grids to Cloud Federations ISSN 1570-7873 Volume 11 Number 1 J Grid Computing (2013) 11:63-81 DOI 10.1007/s10723-012-9238-z Cloud Platform Datastore Support Navraj Computing (2013) 11:63­81 DOI 10.1007/s10723-012-9238-z Cloud Platform Datastore Support Navraj Chohan

  14. The GridSite Web\\/Grid security system

    Microsoft Academic Search

    Andrew Mcnab

    2005-01-01

    SUMMARY This paper describes the architecture of the GridSite system, which adds support for several Grid security protocols to the Apache Web server platform. These include the Globus GSI authentication system, Grid Access Control Language (GACL) access policy files, and Distinguished Name (DN) List and Virtual Organization Membership Service (VOMS) group memberships. Particular emphasis is placed on how the architecture

  15. Evaluating the Information Power Grid Using the NAS Grid Benchmarks

    Microsoft Academic Search

    Rob F. Van Der Wijngaart; Michael A. Frumkin

    2004-01-01

    The NAS Grid Benchmarks (NGB) are a collection of synthetic distributed applications designed to rate the per- formance and functionality of computational grids. We compare several implementations of the NGB to deter- mine programmability and efficiency of NASA's Informa- tion Power Grid (IPG), whose services are mostly based on the Globus Toolkit. We report on the overheads involved in porting

  16. FUTURE POWER GRID INITIATIVE GridOPTICSTM Power Networking,

    E-print Network

    FUTURE POWER GRID INITIATIVE GridOPTICSTM Power Networking, Equipment, and Technology (powerNET) Testbed OBJECTIVE A lot of interest in research, improvements, and testing surrounds the power grid to these activities. Specifically, » power system equipment is expensive and has a high knowledge barrier

  17. Stability of elastic grid shells

    E-print Network

    Mesnil, Romain, M. Eng. Massachusetts Institute of Technology

    2013-01-01

    The elastic grid shell is a solution that combines double curvature and ease of mounting. This structural system, based on the deformation of an initially at grid without shear stiffness was invented more than fifty years ...

  18. Standards for the Smart Grid

    Microsoft Academic Search

    R. DeBlasio; C. Tom

    2008-01-01

    To get from today's electricity grid to tomorrow's smart grid with interconnection and full two way communications connection to distributed energy sources such as wind, solar, and plug-in electric vehicles requires an interoperability framework of protocols and standards.

  19. An integrated drug-likeness study for bicyclic privileged structures: from physicochemical properties to in vitro ADME properties.

    PubMed

    Han, Chunyan; Zhang, Jinlan; Zheng, Mingyue; Xiao, Yao; Li, Yan; Liu, Gang

    2011-11-01

    The concept of drug-likeness has been widely applied in combinatorial chemistry as an approach to reduce attrition in drug discovery and development. Meanwhile, bicyclic privileged structures with versatile binding properties have emerged as ideal source of core scaffolds for the design and synthesis of combinatorial libraries. For the purpose of better assisting the design of bicyclic privileged structure-based combinatorial libraries, we conducted an integrated drug-likeness study on compounds of these scaffolds. Distributions of physicochemical properties (PCPs) were analyzed and in silico prediction models were built. Our results showed that there exist much difference between the drug-like ranges (DLRs) of bicyclic privileged structures and that of others, which have significant impact on compound selection. The DLRs for bicyclic privileged structures were defined as 260 ? MW ? 524; 0.9 ? ALogP ? 5.4; 2 ? Hacc ? 8; Hdon ? 3; 21.0 ? PSA ? 128.6; 6.3 ? FPSA ? 34.2; 1 ? RotB ? 10; 2 ? Nr ? 5; 1 ? Nc ? 7; SA ? 4. Two accurate and easy to understand in silico prediction models, Caco-2 permeability model and metabolic stability classification model, had been built to guide drug candidate optimization. In these models, hydrogen-bond donor and rotatable bond showed major impact on the permeability of compounds, while lipophilicity, flexibility, degree of branching and the existence of some functional groups determined the fate of a drug in metabolic process. Suggestions on structural modification toward higher permeability and metabolic stability were given according to the in silico models. PMID:21538133

  20. Nonsuicidal Self-Injury Among “Privileged” Youths: Longitudinal and Cross-Sectional Approaches to Developmental Process

    PubMed Central

    Yates, Tuppett M.; Luthar, Suniya S.; Tracy, Allison J.

    2015-01-01

    This investigation examined process-level pathways to nonsuicidal self-injury (NSSI; e.g., self-cutting, -burning, -hitting) in 2 cohorts of suburban, upper-middle-class youths: a cross-sectional sample of 9th–12th graders (n = 1,036, 51.9% girls) on the West Coast and a longitudinal sample followed annually from the 6th through 12th grades (n = 245, 53.1% girls) on the East Coast. High rates of NSSI were found in both the cross-sectional (37.2%) and the longitudinal (26.1%) samples. Zero-inflated Poisson regression models estimated process-level pathways from perceived parental criticism to NSSI via youth-reported alienation toward parents. Pathways toward the initiation of NSSI were distinct from those accounting for its frequency. Parental criticism was associated with increased NSSI, and youth alienation toward parents emerged as a relevant process underlying this pathway, particularly for boys. The specificity of these pathways was explored by examining separate trajectories toward delinquent outcomes. The findings illustrate the prominence of NSSI among “privileged” youths, the salience of the caregiving environment in NSSI, the importance of parental alienation in explaining these relations, and the value of incorporating multiple systems in treatment approaches for adolescents who self-injure. PMID:18229983

  1. Regulatory T cells induce a privileged tolerant microenvironment at the fetal-maternal interface.

    PubMed

    Zenclussen, Ana C; Gerlof, Katrin; Zenclussen, Maria L; Ritschel, Stefanie; Zambon Bertoja, Annarosa; Fest, Stefan; Hontsu, Shigeto; Ueha, Satoshi; Matsushima, Kouji; Leber, Joachim; Volk, Hans-Dieter

    2006-01-01

    The mechanisms underlying immune tolerance during pregnancy are poorly understood. In this regard, Treg seem to play an important role in mediating maternal tolerance to the fetus. We proposed a crucial role of T regulatory cells (Treg) in avoiding immunological rejection of the fetus after observing diminished number and function of Treg in abortion-prone mice. We further confirmed the protective role of Treg during pregnancy by transferring pregnancy-induced Treg into abortion-prone mice, which prevented rejection. Here, we analyzed the mechanisms involved in Treg-mediated protection. As expected, Treg therapy prevented abortion, while expanding the peripheral and thymic Treg population. Surprisingly, the decidual levels of the Th1 cytokines IFN-gamma and TNF-alpha were not diminished after therapy. Interestingly, the mRNA levels of leukemia inhibitory factor, TGF-beta and heme oxygenase-1 at the fetal-maternal interface were dramatically up-regulated after Treg transfer, while the levels of indolamine 2,3-dioxygenase remained unchanged. Our data suggest that Treg treatment can not prevent T cell infiltration or high Th1 levels but is able to create a privileged tolerant microenvironment at the fetal-maternal interface, further shedding light onto the molecular mechanisms involved in pregnancy tolerance. PMID:16358362

  2. Spectral methods on arbitrary grids

    NASA Technical Reports Server (NTRS)

    Carpenter, Mark H.; Gottlieb, David

    1995-01-01

    Stable and spectrally accurate numerical methods are constructed on arbitrary grids for partial differential equations. These new methods are equivalent to conventional spectral methods but do not rely on specific grid distributions. Specifically, we show how to implement Legendre Galerkin, Legendre collocation, and Laguerre Galerkin methodology on arbitrary grids.

  3. Smart Grid - a reliability perspective

    Microsoft Academic Search

    Khosrow Moslehi; Ranjit Kumar

    2010-01-01

    Increasing complexity of power grids, growing demand, and requirement for greater grid reliability, security and efficiency as well as environmental and energy sustainability concerns continue to highlight the need for a quantum leap in harnessing communication and information technologies. This leap toward a ¿smarter¿ grid is now widely referred to as \\

  4. Evolution of Data Grid Concepts

    Microsoft Academic Search

    Reagan W. Moore

    The goal of the Global Grid Forum is to develop a common set of services for access to distributed resources. The goal of the digital library and persistent archive communities is to organize, publish, and preserve digital entities. A Data Grid is the software infrastructure that maps from access mechanisms provided by grids to management functions provided by digital libraries.

  5. InterGrid: Peering Architecture and Policies for Internetworking Disparate Grids

    E-print Network

    Buyya, Rajkumar

    will impede realisation of full potential of the Grid computing paradigm. This InterGrid project aims. 1: InterGrid-based Integrated Human Physiome Environment. #12;InterGrid: Peering Architecture and Policies for Internetworking Disparate Grids Staff: Rajkumar

  6. Cloud Computing for the Grid: GridControl: A Software Platform to Support the Smart Grid

    SciTech Connect

    None

    2012-02-08

    GENI Project: Cornell University is creating a new software platform for grid operators called GridControl that will utilize cloud computing to more efficiently control the grid. In a cloud computing system, there are minimal hardware and software demands on users. The user can tap into a network of computers that is housed elsewhere (the cloud) and the network runs computer applications for the user. The user only needs interface software to access all of the cloud’s data resources, which can be as simple as a web browser. Cloud computing can reduce costs, facilitate innovation through sharing, empower users, and improve the overall reliability of a dispersed system. Cornell’s GridControl will focus on 4 elements: delivering the state of the grid to users quickly and reliably; building networked, scalable grid-control software; tailoring services to emerging smart grid uses; and simulating smart grid behavior under various conditions.

  7. Gridded electron reversal ionizer

    NASA Technical Reports Server (NTRS)

    Chutjian, Ara (Inventor)

    1993-01-01

    A gridded electron reversal ionizer forms a three dimensional cloud of zero or near-zero energy electrons in a cavity within a filament structure surrounding a central electrode having holes through which the sample gas, at reduced pressure, enters an elongated reversal volume. The resultant negative ion stream is applied to a mass analyzer. The reduced electron and ion space-charge limitations of this configuration enhances detection sensitivity for material to be detected by electron attachment, such as narcotic and explosive vapors. Positive ions may be generated by generating electrons having a higher energy, sufficient to ionize the target gas and pulsing the grid negative to stop the electron flow and pulsing the extraction aperture positive to draw out the positive ions.

  8. Cyber Security & Smart Grid 

    E-print Network

    Shapiro, J.

    2011-01-01

    -sponsored or terrorist infiltration and potential attack," said Jim Woolsey, former head of the Central Intelligence Agency (CIA). ?The real answer is new technology, active cyber defense, and distributed generation." ESL-KT-11-11-23 CATEE 2011, Dallas, Texas, Nov... of standards and interoperability ESL-KT-11-11-23 CATEE 2011, Dallas, Texas, Nov. 7 ? 9, 2011 Cyber Vulnerabilities In The Legacy Power Grid ? SCADA Security ? Supervisory Control and Data Acquisition (SCADA) systems are used extensively to control...

  9. Adaptive grid optical tomography

    Microsoft Academic Search

    Ivo Ihrke; Marcus A. Magnor

    2006-01-01

    Image-based modeling of semi-transparent, dynamic phenomena is a challenging task. We present an optical tomogra- phy method that uses an adaptive grid for the reconstruction of a three-dimensional density function from its projections. The proposed method is applied to reconstruct thin smoke and flames volumetrically from synchronized multi-video recordings. Our adaptive reconstruction algorithm computes a time-varying volumetric model, that enables

  10. Wireless Communications in Smart Grid

    NASA Astrophysics Data System (ADS)

    Bojkovic, Zoran; Bakmaz, Bojan

    Communication networks play a crucial role in smart grid, as the intelligence of this complex system is built based on information exchange across the power grid. Wireless communications and networking are among the most economical ways to build the essential part of the scalable communication infrastructure for smart grid. In particular, wireless networks will be deployed widely in the smart grid for automatic meter reading, remote system and customer site monitoring, as well as equipment fault diagnosing. With an increasing interest from both the academic and industrial communities, this chapter systematically investigates recent advances in wireless communication technology for the smart grid.

  11. TRMM Gridded Text Products

    NASA Technical Reports Server (NTRS)

    Stocker, Erich Franz

    2007-01-01

    NASA's Tropical Rainfall Measuring Mission (TRMM) has many products that contain instantaneous or gridded rain rates often among many other parameters. However, these products because of their completeness can often seem intimidating to users just desiring surface rain rates. For example one of the gridded monthly products contains well over 200 parameters. It is clear that if only rain rates are desired, this many parameters might prove intimidating. In addition, for many good reasons these products are archived and currently distributed in HDF format. This also can be an inhibiting factor in using TRMM rain rates. To provide a simple format and isolate just the rain rates from the many other parameters, the TRMM product created a series of gridded products in ASCII text format. This paper describes the various text rain rate products produced. It provides detailed information about parameters and how they are calculated. It also gives detailed format information. These products are used in a number of applications with the TRMM processing system. The products are produced from the swath instantaneous rain rates and contain information from the three major TRMM instruments: radar, radiometer, and combined. They are simple to use, human readable, and small for downloading.

  12. Progress in Grid Generation: From Chimera to DRAGON Grids

    NASA Technical Reports Server (NTRS)

    Liou, Meng-Sing; Kao, Kai-Hsiung

    1994-01-01

    Hybrid grids, composed of structured and unstructured grids, combines the best features of both. The chimera method is a major stepstone toward a hybrid grid from which the present approach is evolved. The chimera grid composes a set of overlapped structured grids which are independently generated and body-fitted, yielding a high quality grid readily accessible for efficient solution schemes. The chimera method has been shown to be efficient to generate a grid about complex geometries and has been demonstrated to deliver accurate aerodynamic prediction of complex flows. While its geometrical flexibility is attractive, interpolation of data in the overlapped regions - which in today's practice in 3D is done in a nonconservative fashion, is not. In the present paper we propose a hybrid grid scheme that maximizes the advantages of the chimera scheme and adapts the strengths of the unstructured grid while at the same time keeps its weaknesses minimal. Like the chimera method, we first divide up the physical domain by a set of structured body-fitted grids which are separately generated and overlaid throughout a complex configuration. To eliminate any pure data manipulation which does not necessarily follow governing equations, we use non-structured grids only to directly replace the region of the arbitrarily overlapped grids. This new adaptation to the chimera thinking is coined the DRAGON grid. The nonstructured grid region sandwiched between the structured grids is limited in size, resulting in only a small increase in memory and computational effort. The DRAGON method has three important advantages: (1) preserving strengths of the chimera grid; (2) eliminating difficulties sometimes encountered in the chimera scheme, such as the orphan points and bad quality of interpolation stencils; and (3) making grid communication in a fully conservative and consistent manner insofar as the governing equations are concerned. To demonstrate its use, the governing equations are discretized using the newly proposed flux scheme, AUSM+, which will be briefly described herein. Numerical tests on representative 2D inviscid flows are given for demonstration. Finally, extension to 3D is underway, only paced by the availability of the 3D unstructured grid generator.

  13. iGridPortal and biological problems

    Microsoft Academic Search

    Hoang Le Minh; Vo Duc Cam Hai; Nguyen Thi Thanh Nhan; Tran Linh Thuoc; Do Anh Tuan; Vo Cam Quy

    2004-01-01

    Grid provides us a lot of computing services and resources. However, grid service interfaces are good for programmers, but not for users. Portal is a suitable framework to integrate grid resources and help users communicate easily with the grid infrastructure via Web browsers. Grid technologies have an impact on many areas of sciences, including biology. Grid computing has helped biologist

  14. Enhancing control of grid distribution in algebraic grid generation

    NASA Technical Reports Server (NTRS)

    Steinthorsson, E.; Shih, T. I.-P.; Roelke, R. J.

    1992-01-01

    Three techniques are presented to enhance the control of grid-point distribution for a class of algebraic grid generation methods known as the two-, four- and six-boundary methods. First, multidimensional stretching functions are presented, and a technique is devised to construct them based on the desired distribution of grid points along certain boundaries. Second, a normalization procedure is proposed which allows more effective control over orthogonality of grid lines at boundaries and curvature of grid lines near boundaries. And third, interpolating functions based on tension splines are introduced to control curvature of grid lines in the interior of the spatial domain. In addition to these three techniques, consistency conditions are derived which must be satisfied by all user-specified data employed in the grid generation process to control grid-point distribution. The usefulness of the techniques developed in this study was demonstrated by using them in conjunction with the two- and four-boundary methods to generate several grid systems, including a three-dimensional grid system in the coolant passage of a radial turbine blade with serpentine channels and pin fins.

  15. Medical school personal statements: a measure of motivation or proxy for cultural privilege?

    PubMed

    Wright, Sarah

    2014-09-01

    Students from state schools are underrepresented in UK medical schools. Discussions often focus on deficient academic and motivational traits of state school students, rather than considering the effects of student support during the admissions process. This qualitative study explored student experiences of support from schools and families during the medical school admissions process with particular focus on the personal statement. Interviews were conducted with thirteen medical students at a British medical school who had each attended a different secondary school (classified as private or state funded). A thematic analysis was performed. Bourdieu's concepts of capital and field were used as a theoretical lens through which to view the results. Interviews revealed substantial differences in support provided by private and state funded schools. Private schools had much more experience in the field of medical school admissions and had a vested interest in providing students with support. State schools were lacking by comparison, offering limited support that was often reactive rather than proactive. Students from private schools were also more likely to have social contacts who were knowledgeable about medical school admissions and who could help them gain access to work experience opportunities that would be recognised as legitimate by selectors. While medical schools endeavour to make fair admissions policies, there is an unintended link between a student's access to capital and ability to demonstrate commitment and motivation on personal statements. This helps explain why academically capable but financially or socially challenged students are less likely to be recognised as having potential during the admissions process. Medical schools need to be challenged to review their admissions policies to ensure that the do not inadvertently favour cultural privilege rather than student potential. PMID:25201752

  16. GridFMO - Quantum chemistry of proteins on the grid

    Microsoft Academic Search

    Tsutomu Ikegamial; Jun Maki; Toshiya Takami; Yoshio Tanaka; Mitsuo Yokokawa; Satoshi Sekiguchi; Mutsumi Aoyagi

    2007-01-01

    A GridFMO application was developed by recoining the fragment molecular orbital (FMO) method of GAMESS with grid technology. With the GridFMO, quantum calculations of macro molecules become possible by using large amount of computational resources collected from many moderate-sized cluster computers. A new middleware suite was developed based on Ninf-G, whose fault tolerance and flexible resource management were found to

  17. GridWise: Transforming the Power Grid with Information Technology

    Microsoft Academic Search

    Robert G. Pratt; Eric M. Lightner

    2004-01-01

    GridWise is a vision for the future electric system shared by a new DOE initiative and an industry alliance. GridWise is built upon the fundamental premise that information technology will profoundly transform the plan¬ning and operation of the power grid, just at is has changed business, education, and entertainment. The electric power system has served us remarkably well for over

  18. Evaluating the Information Power Grid using the NAS Grid Benchmarks

    NASA Technical Reports Server (NTRS)

    VanderWijngaartm Rob F.; Frumkin, Michael A.

    2004-01-01

    The NAS Grid Benchmarks (NGB) are a collection of synthetic distributed applications designed to rate the performance and functionality of computational grids. We compare several implementations of the NGB to determine programmability and efficiency of NASA's Information Power Grid (IPG), whose services are mostly based on the Globus Toolkit. We report on the overheads involved in porting existing NGB reference implementations to the IPG. No changes were made to the component tasks of the NGB can still be improved.

  19. Data Management in the GridRPC GridRPC Data Management API

    E-print Network

    Caniou, Yves

    Data Management in the GridRPC Issues Conclusion GridRPC Data Management API Implementations, Le Mahec, Nakada GridRPC DM API: Implem. and Interop. Issues (1/13) #12;Data Management in the GridRPC Issues Conclusion Goal GridRPC DM types: Reminder 1 Data Management in the GridRPC Goal GridRPC DM types

  20. The Volume Grid Manipulator (VGM): A Grid Reusability Tool

    NASA Technical Reports Server (NTRS)

    Alter, Stephen J.

    1997-01-01

    This document is a manual describing how to use the Volume Grid Manipulation (VGM) software. The code is specifically designed to alter or manipulate existing surface and volume structured grids to improve grid quality through the reduction of grid line skewness, removal of negative volumes, and adaption of surface and volume grids to flow field gradients. The software uses a command language to perform all manipulations thereby offering the capability of executing multiple manipulations on a single grid during an execution of the code. The command language can be input to the VGM code by a UNIX style redirected file, or interactively while the code is executing. The manual consists of 14 sections. The first is an introduction to grid manipulation; where it is most applicable and where the strengths of such software can be utilized. The next two sections describe the memory management and the manipulation command language. The following 8 sections describe simple and complex manipulations that can be used in conjunction with one another to smooth, adapt, and reuse existing grids for various computations. These are accompanied by a tutorial section that describes how to use the commands and manipulations to solve actual grid generation problems. The last two sections are a command reference guide and trouble shooting sections to aid in the use of the code as well as describe problems associated with generated scripts for manipulation control.

  1. Open Grid Bridge Noise from Grid and Tire Vibrations

    NASA Astrophysics Data System (ADS)

    Cuschieri, J. M.; Gregory, S.; Tournour, M.

    1996-02-01

    The noise generated during the passage of vehicles on open grid bridge decks has a strong tonal component, which can be a source of annoyance to nearby residents. Potential sources of noise are the vibrations of the grid and the vibrations of the tire. In this paper, the relative contributions from the grid and the tire are investigated by using analytic modelling and field and laboratory measurements. It is shown that the contribution to the overall noise level measured at the curb from the vibrations of the grid is small compared to that from the vibrations of the tire. This is attributed to the fact that the grid has a poor acoustic radiation efficiency because of the large percentage of open area, and the individual grid elements are also very inefficient acoustic radiators in the frequency range of interest. Based on an estimate of the interaction force between the tire and the grid, the radiated noise from the tire alone accounts for the field measured noise level at the curb. To verify that the tire is the dominant source of noise, sound pressure level measurements were performed on a simulated track with the contribution from the grid vibrations removed. The measured sound pressure levels were similar to those measured at the curb. The significance of this result is that mitigation procedures that only reduce the vibration of the grid will not significantly reduce the overall radiated noise, and alternative mitigation procedures must be considered that attempt to reduce the excitation of the tire.

  2. A grid quality manipulation system

    NASA Technical Reports Server (NTRS)

    Lu, Ning; Eiseman, Peter R.

    1991-01-01

    A grid quality manipulation system is described. The elements of the system are the measures by which quality is assessed, the computer graphic display of those measures, and the local grid manipulation to provide a response to the viewed quality indication. The display is an overlaid composite where the region is first covered with colors to reflect the values of the quality indicator, the grid is then placed on top of those colors, and finally a control net is placed on top of everything. The net represents the grid in terms of the control point form of algebraic grid generation. As a control point is moved, both the grid and the colored quality measures also move. This is a real time dynamic action so that the consequences of the manipulation are continuously seen.

  3. Grid Integration of Robotic Telescopes

    E-print Network

    F. Breitling; T. Granzer; H. Enke

    2009-03-23

    Robotic telescopes and grid technology have made significant progress in recent years. Both innovations offer important advantages over conventional technologies, particularly in combination with one another. Here, we introduce robotic telescopes used by the Astrophysical Institute Potsdam as ideal instruments for building a robotic telescope network. We also discuss the grid architecture and protocols facilitating the network integration that is being developed by the German AstroGrid-D project. Finally, we present three user interfaces employed for this purpose.

  4. Grid Task Execution

    NASA Technical Reports Server (NTRS)

    Hu, Chaumin

    2007-01-01

    IPG Execution Service is a framework that reliably executes complex jobs on a computational grid, and is part of the IPG service architecture designed to support location-independent computing. The new grid service enables users to describe the platform on which they need a job to run, which allows the service to locate the desired platform, configure it for the required application, and execute the job. After a job is submitted, users can monitor it through periodic notifications, or through queries. Each job consists of a set of tasks that performs actions such as executing applications and managing data. Each task is executed based on a starting condition that is an expression of the states of other tasks. This formulation allows tasks to be executed in parallel, and also allows a user to specify tasks to execute when other tasks succeed, fail, or are canceled. The two core components of the Execution Service are the Task Database, which stores tasks that have been submitted for execution, and the Task Manager, which executes tasks in the proper order, based on the user-specified starting conditions, and avoids overloading local and remote resources while executing tasks.

  5. Practice-centred evaluation and the privileging of care in health information technology evaluation

    PubMed Central

    2014-01-01

    Background Electronic Patient Records (EPRs) and telemedicine are positioned by policymakers as health information technologies that are integral to achieving improved clinical outcomes and efficiency savings. However, evaluating the extent to which these aims are met poses distinct evaluation challenges, particularly where clinical and cost outcomes form the sole focus of evaluation design. We propose that a practice-centred approach to evaluation - in which those whose day-to-day care practice is altered (or not) by the introduction of new technologies are placed at the centre of evaluation efforts – can complement and in some instances offer advantages over, outcome-centric evaluation models. Methods We carried out a regional programme of innovation in renal services where a participative approach was taken to the introduction of new technologies, including: a regional EPR system and a system to support video clinics. An ‘action learning’ approach was taken to procurement, pre-implementation planning, implementation, ongoing development and evaluation. Participants included clinicians, technology specialists, patients and external academic researchers. Whilst undergoing these activities we asked: how can a practice-centred approach be embedded into evaluation of health information technologies? Discussion Organising EPR and telemedicine evaluation around predetermined outcome measures alone can be impractical given the complex and contingent nature of such projects. It also limits the extent to which unforeseen outcomes and new capabilities are recognised. Such evaluations often fail to improve understanding of ‘when’ and ‘under what conditions’ technology-enabled service improvements are realised, and crucially, how such innovation improves care. Summary Our contribution, drawn from our experience of the case study provided, is a protocol for practice-centred, participative evaluation of technology in the clinical setting that privileges care. In this context ‘practice-centred’ evaluation acts as a scalable, coordinating framework for evaluation that recognises health information technology supported care as an achievement that is contingent and ongoing. We argue that if complex programmes of technology-enabled service innovation are understood in terms of their contribution to patient care and supported by participative, capability-building evaluation methodologies, conditions are created for practitioners and patients to realise the potential of technologies and make substantive contributions to the evidence base underpinning health innovation programmes. PMID:24903604

  6. Grid Generation Techniques Utilizing the Volume Grid Manipulator

    NASA Technical Reports Server (NTRS)

    Alter, Stephen J.

    1998-01-01

    This paper presents grid generation techniques available in the Volume Grid Manipulation (VGM) code. The VGM code is designed to manipulate existing line, surface and volume grids to improve the quality of the data. It embodies an easy to read rich language of commands that enables such alterations as topology changes, grid adaption and smoothing. Additionally, the VGM code can be used to construct simplified straight lines, splines, and conic sections which are common curves used in the generation and manipulation of points, lines, surfaces and volumes (i.e., grid data). These simple geometric curves are essential in the construction of domain discretizations for computational fluid dynamic simulations. By comparison to previously established methods of generating these curves interactively, the VGM code provides control of slope continuity and grid point-to-point stretchings as well as quick changes in the controlling parameters. The VGM code offers the capability to couple the generation of these geometries with an extensive manipulation methodology in a scripting language. The scripting language allows parametric studies of a vehicle geometry to be efficiently performed to evaluate favorable trends in the design process. As examples of the powerful capabilities of the VGM code, a wake flow field domain will be appended to an existing X33 Venturestar volume grid; negative volumes resulting from grid expansions to enable flow field capture on a simple geometry, will be corrected; and geometrical changes to a vehicle component of the X33 Venturestar will be shown.

  7. NAS Grid Benchmarks: A Tool for Grid Space Exploration

    Microsoft Academic Search

    Michael A. Frumkin; Rob F. Van Der Wijngaart

    2001-01-01

    We present a benchmark suite for computational grids in this paper. It is based on the NAS Parallel Benchmarks (NPB) and is called the NAS Grid Benchmark (NGB). We present NGB as a data flow graph encapsulating an instance of an NPB code in each graph node, which communicates with other nodes by sending\\/receiving initialization data. These nodes may be

  8. Grid Collector: Facilitating Efficient Selective Access from DataGrids

    Microsoft Academic Search

    Kesheng Wu; Junmin Gu; Jerome Lauret; Arthur M. Poskanzer; Arie Shoshani; Alexander Sim; Wei-Ming Zhang

    2005-01-01

    The Grid Collector is a system that facilitates the effective analysis and spontaneous exploration of scientific data. It combines an efficient indexing technology with a Grid file management technology to speed up common analysis jobs on high-energy physics data and to enable some previously impractical analysis jobs. To analyze a set of high-energy collision events, one typically specifies the files

  9. A heterogeneous storage grid enabled by grid service

    Microsoft Academic Search

    Yuhui Deng; Frank Wang

    2007-01-01

    Due to the explosive increase of data, storage Grid is a new model for deploying and managing storage resources distributed across multiple systems and networks, making efficient use of available storage capacity. Building a storage Grid demands corresponding protocols and standards to provide interoperability among the large number of heterogeneous storage systems. Service is becoming a basic application pattern of

  10. Sensor Grid: Integration of Wireless Sensor Networks and the Grid

    E-print Network

    Teo, Yong-Meng

    , a wireless sensor network has substantial data acquisition and processing capability. Thus, wireless sensorSensor Grid: Integration of Wireless Sensor Networks and the Grid Hock Beng Lim1 , Yong Meng Teo1 Microsystems, Inc. E-mail: [limhb, teoym]@comp.nus.edu.sg Abstract Wireless sensor networks have emerged

  11. Smart City Grid: The Start to Develop Smart Grid

    Microsoft Academic Search

    Qiqi Zhang; Shentu Gang; Puming Li

    2010-01-01

    Together with the advantages of intelligent technologies, Smart Grid (SG) has become a topical research area in recent years. Considering the abundant and complex technologies it contains, the development of SG should be divided into several stages, and a well designed development strategy is required to improve the transition from current power grid to newly SG step by step. Facing

  12. NAS Grid Benchmarks: A Tool for Grid Space Exploration

    NASA Technical Reports Server (NTRS)

    Frumkin, Michael; VanderWijngaart, Rob F.; Biegel, Bryan (Technical Monitor)

    2001-01-01

    We present an approach for benchmarking services provided by computational Grids. It is based on the NAS Parallel Benchmarks (NPB) and is called NAS Grid Benchmark (NGB) in this paper. We present NGB as a data flow graph encapsulating an instance of an NPB code in each graph node, which communicates with other nodes by sending/receiving initialization data. These nodes may be mapped to the same or different Grid machines. Like NPB, NGB will specify several different classes (problem sizes). NGB also specifies the generic Grid services sufficient for running the bench-mark. The implementor has the freedom to choose any specific Grid environment. However, we describe a reference implementation in Java, and present some scenarios for using NGB.

  13. Grid workflow scheduling based on reliability cost

    Microsoft Academic Search

    Yongcai Tao; Hai Jin; Xuanhua Shi

    2007-01-01

    Grid workflow is a complex and typical grid application, but owing to the highly dynamic feature of grid environments, resource unavailability is increasingly becoming severe and poses great challenges to grid workflow scheduling. Though fault recovery mechanism adopted in grid system guarantee the completion of jobs to some extent, but wasting system resources. To overcome the shortcoming, this paper proposes

  14. PERFORMANCE IMPACT OF THE GRID MIDDLEWARE

    Microsoft Academic Search

    David Carrera; Jordi Guitart; Vicenc Beltran; Jordi Torres; Eduard Ayguade

    2006-01-01

    Abstract. The Open Grid Services Architecture (OGSA) defines a new vision of the Grid based on the use of Web Services (Grid Services). The standard interfaces, behaviors and schemes that are consistent with the OGSA specification are defined by the Open Grid Service Infrastructure (OGSI). Grid Services, as an extension of the Web Services, run on top of rich execution

  15. ROV Grid Search

    NSDL National Science Digital Library

    Michael DiSpezio

    This activity will show students how a grid search is conducted by remotely operated vehicles (ROVs). They will learn that in order to locate target sites, underwater camera sleds and ROVs must often follow a well-defined search pattern. Using methodical sweeping movements, these craft will locate objects that might otherwise be overlooked if a more random searching method was employed. In this activity students get to create a search pattern that will be used to uncover hidden targets. It will offer students an experience that recreates the remote exploration of the sea bottom, a hands-on activity using a remote-controlled vehicle, and an exercise in uncovering targets through methodical searching.

  16. Intelligent automated surface grid generation

    NASA Technical Reports Server (NTRS)

    Yao, Ke-Thia; Gelsey, Andrew

    1995-01-01

    The goal of our research is to produce a flexible, general grid generator for automated use by other programs, such as numerical optimizers. The current trend in the gridding field is toward interactive gridding. Interactive gridding more readily taps into the spatial reasoning abilities of the human user through the use of a graphical interface with a mouse. However, a sometimes fruitful approach to generating new designs is to apply an optimizer with shape modification operators to improve an initial design. In order for this approach to be useful, the optimizer must be able to automatically grid and evaluate the candidate designs. This paper describes and intelligent gridder that is capable of analyzing the topology of the spatial domain and predicting approximate physical behaviors based on the geometry of the spatial domain to automatically generate grids for computational fluid dynamics simulators. Typically gridding programs are given a partitioning of the spatial domain to assist the gridder. Our gridder is capable of performing this partitioning. This enables the gridder to automatically grid spatial domains of wide range of configurations.

  17. Constructing the ASCI Computational Grid

    Microsoft Academic Search

    Judy I. Beiriger; Wilbur R. Johnson; Hugh P. Bivens; Steven L. Humphreys; RONALD E. RHEA

    2000-01-01

    The Accelerated Strategic Computing Initiative (ASCI) computational grid is being constructed to interconnect the high performance computing resources of the nuclear weapons complex. The grid will simplify access to the diverse computing, storage, network, and visualization resources, and will enable the coordinated use of shared resources regardless of location. To match existing hardware platforms, required security services, and current simulation

  18. PGS: Pervasive Grid Simulator Library

    Microsoft Academic Search

    Rebbah Mohammed; Mokhtari Chakir; Souane Naima; Ghezal Kheira

    2009-01-01

    Pervasive grids are service-oriented architecture,allowing sharing of resources through a flexible infrastructure, stable infrastructure providing computing power and secondly mobile devices allowing access to that power. They are characterized by their large scale in terms of number of resources, many users and geographical extent, heterogeneity and dynamism of their resources. The complexity of pervasive grids in regard to the study

  19. Grid Computing for Physics Environments

    Microsoft Academic Search

    Joshua Jeffry Hone

    2003-01-01

    Compute grids for applications have the potential to solve significant issues which contribute to low data processing and publication rates. This potential includes an ability to transparently manage large amounts of data and to greatly enhance project computing resources. This project proposes construction of a structured computing grid from the combination of several open-source Java web application systems, with the

  20. Contiguous gridded gun development program

    NASA Astrophysics Data System (ADS)

    Huffman, G.

    1980-03-01

    A gridded gun, suitable for operating megawatt level linear beam tubes, has been designed and tested at lower levels in a beam analyzer. The new gun features a shadow grid in contact with the cathode surface. A major goal was to achieve low control grid interception. Guns with contiguous grid systems are in common use in low and medium power tubes. The purpose of this program was to extend existing lower power gridded gun technology to the megawatt level. The basic gun parameters including beam diameter, voltage, current, perveance and grid operating voltage are all quite conservative and readily achievable in an 83 kV gun. The most critical requirement was that the maximum outer diameter of the gun assembly not exceed 5.48 inches. This limit forced a compromise between cathode emission density and high voltage gradients and dictated the use of a tungsten matrix cathode. A scale model gun was built and tested in a beam analyzer. After modification to the design, a full-scale gun was built and also tested in the beam analyzer. Extrapolations from the beam analyzer test data show that the gun should meet all performance objectives at full power except for heater power and grid bias voltage. The intercepted control grid current cannot be accurately estimated for full power operation, but it is believed that it will be less than the 40 milliamps specified.

  1. Some Observations on Grid Convergence

    NASA Technical Reports Server (NTRS)

    Salas, manuel D.

    2006-01-01

    It is claimed that current practices in grid convergence studies, particularly in the field of external aerodynamics, are flawed. The necessary conditions to properly establish grid convergence are presented. A theoretical model and a numerical example are used to demonstrate these ideas.

  2. High Performance and Grid Computing

    E-print Network

    Allen, Gabrielle

    1 High Performance and Grid Computing Applications with the Cactus Framework Gabrielle Allen;2 Cactus Framework http://www.cactuscode.org · Programming framework and toolkits for high performance: compilers, datatypes · Tools: debuggers, monitoring, performance · And now: High Speed Networks and Grids

  3. DNS of vibrating grid turbulence

    NASA Astrophysics Data System (ADS)

    Khujadze, G.; Oberlack, M.

    Direct numerical simulation of the turbulence generated at a grid vibrating normally to itself using spectral code [1] is presented. Due to zero mean shear there is no production of turbulence apart from the grid. Action of the grid is mimiced by the function implemented in the middle of the simulation box:f_i (x_1 ,x_2 ) = {n^2 S}/2left\\{ {left| {{? _{i3} }/4\\cos left( {{2? }/Mx_1 } right)\\cos left. {left( {{2? }/Mx_2 } right)} right|} right.sin (nt) + {? _i }/4} right\\}, where M is the mesh size, S/2 - amplitude or stroke of the grid, n - frequency. ? i are random numbers with uniform distribution. The simulations were performed for the following parameters: x 1, x 2 ? [-?; ?], x 3 ? [-2?; 2?]; Re = nS 2/? = 1000; S/M = 2; Numerical grid: 128 × 128 × 256.

  4. Skew grids and irrotational flow

    NASA Astrophysics Data System (ADS)

    Bernard, Robert S.

    1988-03-01

    Finite-difference computation of incompressible flow through regions of arbitrary shape often requires the implementation of boundary-fitted coordinates for which the grid lines may be non-orthogonal (skew). When the governing equations are expressed in terms of pressure and velocity, conservation of mass is maintained by the gradient of the pressure. In principle, the gradient is irrotational and should have no effect on the existing circulation in the flow field; but if the grid lines are skew, the discrete representation of the gradient can generate spurious vorticity near the boundaries. In the present work this difficulty is eliminated for uniform skew grids, and markedly reduced for non-uniform skew grids, by adopting a discrete formulation of the pressure gradient that helps maintain irrotationality near boundaries. The procedure is applicable for staggered grids with either Poisson or Chorin equations for pressure.

  5. From the Grid to the Smart Grid, Topologically

    E-print Network

    Pagani, Giuliano Andrea

    2013-01-01

    The Smart Grid is not just about the digitalization of the Power Grid. In its more visionary acceptation, it is a model of energy management in which the users are engaged in producing energy as well as consuming it, while having information systems fully aware of the energy demand-response of the network and of dynamically varying prices. A natural question is then: to make the Smart Grid a reality will the Distribution Grid have to be updated? We assume a positive answer to the question and we consider the lower layers of Medium and Low Voltage to be the most affected by the change. In our previous work, we have analyzed samples of the Dutch Distribution Grid in our previous work and we have considered possible evolutions of these using synthetic topologies modeled after studies of complex systems in other technological domains in another previous work. In this paper, we take an extra important further step by defining a methodology for evolving any existing physical Power Grid to a good Smart Grid model th...

  6. Integrating a financial option based model with GridSim for pricing Grid resources

    Microsoft Academic Search

    David Allenotor; Ruppa K. Thulasiram

    2009-01-01

    Analysis of grid resources utilization from real grid trace data shows the feasibility of a financial option based model for pricing grid resources to attract more users for profitability for the grid provider while providing high Quality of Service (QoS) to users. However, in the absence of grid resource pricing benchmarks, we simulate grid resources usage in order to justify

  7. International Journal of Smart Grid and Clean Energy Smart Grid Security: Threats, Vulnerabilities and Solutions

    E-print Network

    Aloul, Fadi

    International Journal of Smart Grid and Clean Energy Smart Grid Security: Threats, Vulnerabilities is currently evolving into the smart grid. Smart grid integrates the traditional electrical power grid, controlling and managing the demands of customers. A smart grid is a huge complex network composed of millions

  8. 76 FR 12711 - Smart Grid Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-08

    ...Institute of Standards and Technology Smart Grid Advisory Committee AGENCY: National...SUMMARY: The Smart Grid Advisory Committee (SGAC or Committee...final agenda will be posted on the Smart Grid Web site at...

  9. 76 FR 70412 - Smart Grid Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-14

    ...Institute of Standards and Technology Smart Grid Advisory Committee AGENCY: National...SUMMARY: The Smart Grid Advisory Committee (SGAC or Committee...final agenda will be posted on the Smart Grid Web site at...

  10. 75 FR 55306 - Smart Grid Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-10

    ...Institute of Standards and Technology Smart Grid Advisory Committee AGENCY: National...SUMMARY: The Smart Grid Advisory Committee (SGAC or Committee...and provide an update on NIST's Smart Grid program. The agenda may change...

  11. 77 FR 38768 - Smart Grid Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-29

    ...Institute of Standards and Technology Smart Grid Advisory Committee AGENCY: National...SUMMARY: The Smart Grid Advisory Committee (SGAC or Committee...meeting are to review updates on the Smart Grid Interoperability Panel...

  12. 76 FR 46279 - Smart Grid Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-02

    ...Institute of Standards and Technology Smart Grid Advisory Committee AGENCY: Department...SUMMARY: The Smart Grid Advisory Committee (SGAC or Committee...Office of the National Coordinator for Smart Grid Interoperability, National...

  13. Smart Grid Status and Metrics Report

    SciTech Connect

    Balducci, Patrick J.; Weimar, Mark R.; Kirkham, Harold

    2014-07-01

    To convey progress made in achieving the vision of a smart grid, this report uses a set of six characteristics derived from the National Energy Technology Laboratory Modern Grid Strategy. It measures 21 metrics to provide insight into the grid’s capacity to embody these characteristics. This report looks across a spectrum of smart grid concerns to measure the status of smart grid deployment and impacts.

  14. National Smart Water Grid

    SciTech Connect

    Beaulieu, R A

    2009-07-13

    The United States repeatedly experiences floods along the Midwest's large rivers and droughts in the arid Western States that cause traumatic environmental conditions with huge economic impact. With an integrated approach and solution these problems can be alleviated. Tapping into the Mississippi River and its tributaries, the world's third largest fresh water river system, during flood events will mitigate the damage of flooding and provide a new source of fresh water to the Western States. The trend of increased flooding on the Midwest's large rivers is supported by a growing body of scientific literature. The Colorado River Basin and the western states are experiencing a protracted multi-year drought. Fresh water can be pumped via pipelines from areas of overabundance/flood to areas of drought or high demand. Calculations document 10 to 60 million acre-feet (maf) of fresh water per flood event can be captured from the Midwest's Rivers and pumped via pipelines to the Colorado River and introduced upstream of Lake Powell, Utah, to destinations near Denver, Colorado, and used in areas along the pipelines. Water users of the Colorado River include the cities in southern Nevada, southern California, northern Arizona, Colorado, Utah, Indian Tribes, and Mexico. The proposed start and end points, and routes of the pipelines are documented, including information on right-of-ways necessary for state and federal permits. A National Smart Water Grid{trademark} (NSWG) Project will create thousands of new jobs for construction, operation, and maintenance and save billions in drought and flood damage reparations tax dollars. The socio-economic benefits of NWSG include decreased flooding in the Midwest; increased agriculture, and recreation and tourism; improved national security, transportation, and fishery and wildlife habitats; mitigated regional climate change and global warming such as increased carbon capture; decreased salinity in Colorado River water crossing the US-Mexico border; and decreased eutrophication (excessive plant growth and decay) in the Gulf of Mexico to name a few. The National Smart Water Grid{trademark} will pay for itself in a single major flood event.

  15. A Java commodity grid kit.

    SciTech Connect

    von Laszewski, G.; Foster, I.; Gawor, J.; Lane, P.; Mathematics and Computer Science

    2001-07-01

    In this paper we report on the features of the Java Commodity Grid Kit. The Java CoG Kit provides middleware for accessing Grid functionality from the Java framework. Java CoG Kit middleware is general enough to design a variety of advanced Grid applications with quite different user requirements. Access to the Grid is established via Globus protocols, allowing the Java CoG Kit to communicate also with the C Globus reference implementation. Thus, the Java CoG Kit provides Grid developers with the ability to utilize the Grid, as well as numerous additional libraries and frameworks developed by the Java community to enable network, Internet, enterprise, and peer-to peer computing. A variety of projects have successfully used the client libraries of the Java CoG Kit to access Grids driven by the C Globus software. In this paper we also report on the efforts to develop server side Java CoG Kit components. As part of this research we have implemented a prototype pure Java resource management system that enables one to run Globus jobs on platforms on which a Java virtual machine is supported, including Windows NT machines.

  16. Interoperable PKI Data Distribution in Computational Grids

    E-print Network

    Smith, Sean W.

    organizations, computational grids need authentication mechanisms that inter-operate across domain boundaries, Resource Discovery, PRQP AUTHENTICATION IN VIRTUAL ORGANIZATIONS Computational grids provide researchers

  17. National transmission grid study

    SciTech Connect

    Abraham, Spencer

    2003-05-31

    The National Energy Policy Plan directed the U.S. Department of Energy (DOE) to conduct a study to examine the benefits of establishing a national electricity transmission grid and to identify transmission bottlenecks and measures to address them. DOE began by conducting an independent analysis of U.S. electricity markets and identifying transmission system bottlenecks using DOE’s Policy Office Electricity Modeling System (POEMS). DOE’s analysis, presented in Section 2, confirms the central role of the nation’s transmission system in lowering costs to consumers through increased trade. More importantly, DOE’s analysis also confirms the results of previous studies, which show that transmission bottlenecks and related transmission system market practices are adding hundreds of millions of dollars to consumers’ electricity bills each year. A more detailed technical overview of the use of POEMS is provided in Appendix A. DOE led an extensive, open, public input process and heard a wide range of comments and recommendations that have all been considered.1 More than 150 participants registered for three public workshops held in Detroit, MI (September 24, 2001); Atlanta, GA (September 26, 2001); and Phoenix, AZ (September 28, 2001).

  18. Grid Visualization Tool

    NASA Technical Reports Server (NTRS)

    Chouinard, Caroline; Fisher, Forest; Estlin, Tara; Gaines, Daniel; Schaffer, Steven

    2005-01-01

    The Grid Visualization Tool (GVT) is a computer program for displaying the path of a mobile robotic explorer (rover) on a terrain map. The GVT reads a map-data file in either portable graymap (PGM) or portable pixmap (PPM) format, representing a gray-scale or color map image, respectively. The GVT also accepts input from path-planning and activity-planning software. From these inputs, the GVT generates a map overlaid with one or more rover path(s), waypoints, locations of targets to be explored, and/or target-status information (indicating success or failure in exploring each target). The display can also indicate different types of paths or path segments, such as the path actually traveled versus a planned path or the path traveled to the present position versus planned future movement along a path. The program provides for updating of the display in real time to facilitate visualization of progress. The size of the display and the map scale can be changed as desired by the user. The GVT was written in the C++ language using the Open Graphics Library (OpenGL) software. It has been compiled for both Sun Solaris and Linux operating systems.

  19. Uniform hypergraphs containing no grids

    E-print Network

    Füredi, Zoltán

    2011-01-01

    A hypergraph is called an r by r grid if it is isomorphic to a pattern of r horizontal and r vertical lines. Three sets form a triangle if they pairwise intersect in three distinct singletons. A hypergraph is linear if every pair of edges meet in at most one vertex. In this paper we construct large linear r-hypergraphs which contain no grids. Moreover, a similar construction gives large linear r-hypergraphs which contain neither grids nor triangles. For r at least 4 our constructions are almost optimal. These investigations are also motivated by coding theory: we get new bounds for optimal superimposed codes and designs.

  20. Grid scheduling for interactive analysis.

    PubMed

    Germain-Renaud, Cécile; Texier, Romain; Osorio, Angel; Loomis, Charles

    2006-01-01

    Grids are facing the challenge of moving from batch systems to interactive computing. In the 70s, standalone computer systems have met this challenge, and this was the starting point of pervasive computing. Meeting this challenge will allow grids to be the infrastructure for ambient intelligence and ubiquitous computing. This paper shows that EGEE, the largest world grid, does not yet provide the services required for interactive computing, but that it is amenable to this evolution through relatively modest middleware evolution. A case study on medical image analysis exemplifies the particular needs of ultra-short jobs. PMID:16823120

  1. Grid spacing control with variation diminishing splines

    NASA Technical Reports Server (NTRS)

    Smith, P. W.

    1983-01-01

    Methods used to specify and control two and three dimensional grids on which numerical solutions of partial differential equations may be obtained were studied. While initially focusing on grid generation, the research will evolve into a consideration of the interaction of grid generation with the solution of a partial differential equation. The multisurface method of grid generation was used to continuously patch a grid onto an existing grid. In the resulting grid the elements of the Jacobian matrix must be continuous across the boundary between the original grid and the patched grid. Programs were written which accept as input the coordinates of the original grid and the desired new boundary, and then use the three-surface or four-surface version of the multisurface method to extend the original grid out to a new boundary.

  2. isochrones: Stellar model grid package

    NASA Astrophysics Data System (ADS)

    Morton, Timothy D.

    2015-03-01

    Isochrones, written in Python, simplifies common tasks often done with stellar model grids, such as simulating synthetic stellar populations, plotting evolution tracks or isochrones, or estimating the physical properties of a star given photometric and/or spectroscopic observations.

  3. Grid-double-helicate interconversion.

    PubMed

    Stadler, Adrian-Mihail; Burg, Christophe; Ramírez, Juan; Lehn, Jean-Marie

    2013-06-28

    An interconversion between a binuclear Cu(I) double helicate and a tetranuclear Cu(II) grid is reported. The passage from the Cu(I) double helicate to the Cu(II) grid occurs through oxidation of Cu(I) into Cu(II) or through displacement of Cu(I) by Cu(II). The conversion of the Cu(II) grid into the Cu(I) double helicate occurs through treatment of the grid with triflic acid, reduction of Cu(II) with ascorbic acid, and neutralization with triethylamine. During the studies, in order to ascertain the structure of Cu(I) complexes, a heteroleptic binuclear Cu(I) double helicate was generated. PMID:23687653

  4. Quasiconformal mappings and grid generation

    NASA Technical Reports Server (NTRS)

    Mastin, C. W.; Thompson, J. F.

    1983-01-01

    A finite difference scheme is developed for constructing quasiconformal mappings for arbitrary simply and doubly connected regions. Computational grids are generated to reduce elliptic equations to canonical form. Examples of conformal mappings on surfaces are also included.

  5. Grid Pricing of Fed Cattle 

    E-print Network

    Schroeder, Ted C.; Hogan, Robert J.; Anderson, David P.

    2009-03-02

    There are several value-based fed cattle pricing systems, including formula pricing, price grids and alliances. This publication describes the different cattle pricing methods and helps you decide which is best for you....

  6. Reinventing Batteries for Grid Storage

    SciTech Connect

    Banerjee, Sanjoy

    2012-01-01

    The City University of New York's Energy Institute, with the help of ARPA-E funding, is creating safe, low cost, rechargeable, long lifecycle batteries that could be used as modular distributed storage for the electrical grid. The batteries could be used at the building level or the utility level to offer benefits such as capture of renewable energy, peak shaving and microgridding, for a safer, cheaper, and more secure electrical grid.

  7. Smart Wire Grid: Resisting Expectations

    SciTech Connect

    Ramsay, Stewart; Lowe, DeJim

    2014-03-03

    Smart Wire Grid's DSR technology (Discrete Series Reactor) can be quickly deployed on electrical transmission lines to create intelligent mesh networks capable of quickly rerouting electricity to get power where and when it's needed the most. With their recent ARPA-E funding, Smart Wire Grid has been able to move from prototype and field testing to building out a US manufacturing operation in just under a year.

  8. Reinventing Batteries for Grid Storage

    ScienceCinema

    Banerjee, Sanjoy

    2013-05-29

    The City University of New York's Energy Institute, with the help of ARPA-E funding, is creating safe, low cost, rechargeable, long lifecycle batteries that could be used as modular distributed storage for the electrical grid. The batteries could be used at the building level or the utility level to offer benefits such as capture of renewable energy, peak shaving and microgridding, for a safer, cheaper, and more secure electrical grid.

  9. A fast nested multi-grid viscous flow solver for adaptive Cartesian\\/Quad grids

    Microsoft Academic Search

    Z. J. Wang

    2000-01-01

    SUMMARY A nested multi-grid solution algorithm has been developed for an adaptive Cartesian:Quad grid viscous flow solver. Body-fitted adaptive Quad (quadrilateral) grids are generated around solid bodies through 'surface extrusion'. The Quad grids are then overlapped with an adaptive Cartesian grid. Quadtree data structures are employed to record both the Quad and Cartesian grids. The Cartesian grid is generated through

  10. Towards Smart Grid Dynamic Ratings

    NASA Astrophysics Data System (ADS)

    Cheema, Jamal; Clark, Adrian; Kilimnik, Justin; Pavlovski, Chris; Redman, David; Vu, Maria

    2011-08-01

    The energy distribution industry is giving greater attention to smart grid solutions as a means for increasing the capabilities, efficiency and reliability of the electrical power network. The smart grid makes use of intelligent monitoring and control devices throughout the distribution network to report on electrical properties such as voltage, current and power, as well as raising network alarms and events. A further aspect of the smart grid embodies the dynamic rating of electrical assets of the network. This fundamentally involves a rating of the load current capacity of electrical assets including feeders, transformers and switches. The mainstream approach to rate assets is to apply the vendor plate rating, which often under utilizes assets, or in some cases over utilizes when environmental conditions reduce the effective rated capacity, potentially reducing lifetime. Using active intelligence we have developed a rating system that rates assets in real time based upon several events. This allows for a far more efficient and reliable electrical grid that is able to extend further the life and reliability of the electrical network. In this paper we describe our architecture, the observations made during development and live deployment of the solution into operation. We also illustrate how this solution blends with the smart grid by proposing a dynamic rating system for the smart grid.

  11. A Response to "Social Privilege, Social Justice, and Group Counseling: An Inquiry"--Inclusive Cultural Empathy and the Search for Social Justice

    ERIC Educational Resources Information Center

    Pedersen, Paul

    2008-01-01

    This response suggests that Inclusive Cultural Empathy (ICE) is a process that multiculturally aware group counselors can use to help group members move beyond the confines of social privilege and culture-bound assumptions that divide members and impede communication. (Contains 1 figure.)

  12. Acknowledgments This project has been an enriching experience in many ways. It was a privilege to be part of a team

    E-print Network

    Bonaventure, Olivier

    was partially sponsored by the Defense Advanced Research Projects Agency (DoD) and monitored by Space & NavalAcknowledgments This project has been an enriching experience in many ways. It was a privilege, and Dr. D. von Tischtiegel. Veel dank ook aan mijn familie, et gros bisous pour Brigitte. This research

  13. NOBEL PRIZE WINNER VISITS CAIRNS HIGH Cairns State High School physics students where privileged to have a distinguished guest speaker to the school, a Nobel

    E-print Network

    NOBEL PRIZE WINNER VISITS CAIRNS HIGH Cairns State High School physics students where privileged. Wolfgang Ketterle was awarded a Nobel Prize in 2001 for Physics. Taking time out of his busy schedule for another hour". Close Window Cairns State High School - Nobel Prize Winner visits Cairns High http

  14. The Privileging of Communitarian Ideas: Citation Practices and the Translation of Social Capital Into Public Health Research

    PubMed Central

    Moore, Spencer; Shiell, Alan; Hawe, Penelope; Haines, Valerie A.

    2005-01-01

    The growing use of social science constructs in public health invites reflection on how public health researchers translate, that is, appropriate and reshape, constructs from the social sciences. To assess how 1 recently popular construct has been translated into public health research, we conducted a citation network and content analysis of public health articles on the topic of social capital. The analyses document empirically how public health researchers have privileged communitarian definitions of social capital and marginalized network definitions in their citation practices. Such practices limit the way public health researchers measure social capital’s effects on health. The application of social science constructs requires that public health scholars be sensitive to how their own citation habits shape research and knowledge. PMID:16006421

  15. Monitoring for multi-middleware grid

    Microsoft Academic Search

    Gevorg S. Poghosyan; Marcel Kunze

    2008-01-01

    Within the framework of the German Grid Computing Initiative (D-Grid), we study the monitoring systems and software suites that are used to collect the information from computational grids working with single or multiple middleware systems. Based on these investigations we build the prototypes of monitoring systems and implement it in the D-Grid infrastructure. A concept of Site Check Center (SCC)

  16. Research on smart grid in China

    Microsoft Academic Search

    Jingjing Lu; Da Xie; Qian Ai

    2009-01-01

    The smart grid is the latest direction for the future power system development. In this paper, firstly the background of smart grid, its meaning, as well as the concept and structure were presented. Typical diagram of smart grid was illustrated. Then, the current development of smart grid in United States and Europe were described, development ideas and the future trends

  17. Scalable dimensioning of resilient Lambda Grids

    Microsoft Academic Search

    Pieter Thysebaert; Marc De Leenheer; Bruno Volckaert; Filip De Turck; Bart Dhoedt; Piet Demeester

    2008-01-01

    Grids consist of the aggregation of numerous dispersed computational, storage and network resources, able to satisfy even the most demanding computing jobs. Due to the data-intensive nature of Grid jobs, there is an increasing interest in Grids using optical transport networks as this technology allows for the timely delivery of large amounts of data. Such Grids are commonly referred to

  18. Semantic-based authorization architecture for Grid

    Microsoft Academic Search

    Juan Manuel Marín Pérez; Jorge Bernal Bernabé; Jose M. Alcaraz Calero; Félix J. García Clemente; Gregorio Martínez Pérez; Antonio F. Gómez-Skarmeta

    2011-01-01

    There are a few issues that still need to be covered regarding security in the Grid area. One of them is authorization where there exist good solutions to define, manage and enforce authorization policies in Grid scenarios. However, these solutions usually do not provide Grid administrators with semantic-aware components closer to the particular Grid domain and easing different administration tasks

  19. Ion beamlet vectoring by grid translation

    NASA Technical Reports Server (NTRS)

    Homa, J. M.; Wilbur, P. J.

    1982-01-01

    Ion beamlet vectoring is investigated by collecting deflection and divergence angle data for two-grid systems as a function of the relative displacement of these grids. Results show that at large displacements, accelerator grid impingement becomes a limiting factor and this determines the useful range of beamlet deflection. Beamlet deflection was shown to vary linearly with grid offset angle over this range. Values of deflection-to-offset angle ratio and useful range of deflection are presented as functions of grid-hole geometries, perveance levels, and accelerating voltages. It is found that the divergence of the beamlets is unaffected by deflection over the useful range of beamlet deflection. The grids of a typical dished-grid ion thruster are examined to determine where over the grid surface the grid offsets exceed the useful range, which indicates the regions on the surface where high accelerator grid impingment is probably occurring.

  20. Smart Grid Information Security (IS) Functional Requirement

    E-print Network

    Ling, Amy Poh Ai

    2011-01-01

    It is important to implement safe smart grid environment to enhance people's lives and livelihoods. This paper provides information on smart grid IS functional requirement by illustrating some discussion points to the sixteen identified requirements. This paper introduces the smart grid potential hazards that can be referred as a triggering factor to improve the system and security of the entire grid. The background of smart information infrastructure and the needs for smart grid IS is described with the adoption of hermeneutic circle as methodology. Grid information technology and security-s session discusses that grid provides the chance of a simple and transparent access to different information sources. In addition, the transformation between traditional versus smart grid networking trend and the IS importance on the communication field reflects the criticality of grid IS functional requirement identification is introduces. The smart grid IS functional requirements described in this paper are general and ...

  1. The Hermann grid illusion revisited.

    PubMed

    Schiller, Peter H; Carvey, Christina E

    2005-01-01

    The Hermann grid illusion consists of smudges perceived at the intersections of a white grid presented on a black background. In 1960 the effect was first explained by a theory advanced by Baumgartner suggesting the illusory effect is due to differences in the discharge characteristics of retinal ganglion cells when their receptive fields fall along the intersections versus when they fall along non-intersecting regions of the grid. Since then, others have claimed that this theory might not be adequate, suggesting that a model based on cortical mechanisms is necessary [Lingelbach et al, 1985 Perception 14(1) A7; Spillmann, 1994 Perception 23 691 708; Geier et al, 2004 Perception 33 Supplement, 53; Westheimer, 2004 Vision Research 44 2457 2465]. We present in this paper the following evidence to show that the retinal ganglion cell theory is untenable: (i) varying the makeup of the grid in a manner that does not materially affect the putative differential responses of the ganglion cells can reduce or eliminate the illusory effect; (ii) varying the grid such as to affect the putative differential responses of the ganglion cells does not eliminate the illusory effect; and (iii) the actual spatial layout of the retinal ganglion cell receptive fields is other than that assumed by the theory. To account for the Hermann grid illusion we propose an alternative theory according to which the illusory effect is brought about by the manner in which S1 type simple cells (as defined by Schiller et al, 1976 Journal of Neurophysiology 39 1320-1333) in primary visual cortex respond to the grid. This theory adequately handles many of the facts delineated in this paper. PMID:16355743

  2. EconoGrid: A detailed Simulation Model of a Standards-based Grid Compute Economy

    E-print Network

    EconoGrid: A detailed Simulation Model of a Standards-based Grid Compute Economy EconoGrid is a detailed simulation model, implemented in SLX1 , of a grid compute economy that implements selected of users. In a grid compute economy, computing resources are sold to users in a market where price

  3. A Grid Service Broker for Scheduling Distributed Data-Oriented Applications on Global Grids

    E-print Network

    Buyya, Rajkumar

    for creating grid applications. We have used this model in grid-enabling a high energy physics analysis -- such as computers, databases, visualization devices, and scientific instruments. Recently, Data Grids [2] have1 A Grid Service Broker for Scheduling Distributed Data-Oriented Applications on Global Grids

  4. A Grid Service Broker for Scheduling e-Science Applications on Global Data Grids

    E-print Network

    Melbourne, University of

    for creating grid applications. We have used this model in grid-enabling a high energy physics analysis, databases, visualization devices, and scientific instruments. Recently, Data Grids [7] have evolved1 A Grid Service Broker for Scheduling e-Science Applications on Global Data Grids Srikumar

  5. How Dynamic is the Grid? Towards a Quality Metric for Grid Information Systems

    E-print Network

    Sakellariou, Rizos

    How Dynamic is the Grid? Towards a Quality Metric for Grid Information Systems Laurence Field CERN rizos@cs.man.ac.uk Abstract--Grid information systems play a core role in today's production Grid. Quality metrics for Grid information systems are required in order to compare different implementations

  6. Smart Grid: Opportunities and Challenges Toward a Stronger and Smarter Grid

    E-print Network

    Amin, S. Massoud

    Smart Grid: Opportunities and Challenges Toward a Stronger and Smarter Grid S. Massoud Amin, D electrical energy infrastructure ­ Transforming the Network into a Smart Grid ­ Developing an Expanded be reproduced in any form without prior authorization. Enabling a Stronger and Smarter Grid ·Smart Grid

  7. Mapping of grid faults and grid codes Florin Iov, Anca Daniela Hansen, Poul Srensen,

    E-print Network

    Mapping of grid faults and grid codes Florin Iov, Anca Daniela Hansen, Poul Sørensen, Nicolaos Cutululis** Title: Mapping of grid faults and grid codes Department: *Aalborg University, Institute of the research project "Grid fault and design- basis for wind turbine" supported by Energinet.dk through

  8. Grid'5000: a large scale and highly reconfigurable grid experimental testbed

    Microsoft Academic Search

    Franck Cappello; Eddy Caron; Michel J. Daydé; Frédéric Desprez; Yvon Jégou; Pascale Vicat-blanc Primet; Emmanuel Jeannot; Stéphane Lanteri; Julien Leduc; Nouredine Melab; Guillaume Mornet; Raymond Namyst; Benjamin Quétier; Olivier Richard

    2005-01-01

    Large scale distributed systems like Grids are difficult to study only from theoretical models and simulators. Most Grids deployed at large scale are production platforms that are inappropriate research tools because of their limited re- configuration, control and monitoring capabilities. In this paper, we present Grid'5000, a 5000 CPUs nation-wide in- frastructure for research in Grid computing. Grid'5000 is designed

  9. Grid'5000: A Large Scale And Highly Reconfigurable Experimental Grid Testbed

    Microsoft Academic Search

    Raphael Bolze; Franck Cappello; Eddy Caron; Michel J. Daydé; Frédéric Desprez; Emmanuel Jeannot; Yvon Jégou; Julien Leduc; Nouredine Melab; Guillaume Mornet; Raymond Namyst; Pascale Primet; Benjamin Quétier; Olivier Richard; El-ghazali Talbi

    2006-01-01

    Large scale distributed systems such as Grids are difficult to study from theoretical models and simulators only. Most Grids deployed at large scale are production platforms that are inappropriate research tools because of their limited reconfiguration, control and monitoring capabilities. In this paper, we present Grid'5000, a 5000 CPU nation-wide infrastructure for research in Grid computing. Grid'5000 is designed to

  10. Smart Grid Impact on Intelligent Buildings

    E-print Network

    Zimmer, R. J.

    2013-01-01

    International Conference for Enhanced Building Operations ICEBO 2013 Ronald?J.?Zimmer?CAE President?&?CEO Continental?Automated?Buildings?Association http://www.CABA.org LinkedIn?Profile Smart Grid Impact on Intelligent Buildings CABA BOARD... OF DIRECTORS 3 Making?the?Grid?Smart Smart?grid?features?expand?energy? efficiency?beyond?the?grid?into? buildings?by?coordinating?low?priority? energy?consuming?devices?to?take? advantage?of?the?most?desirable? energy?sources Smart?grids...

  11. Smart Grid Information Clearinghouse (SGIC)

    SciTech Connect

    Rahman, Saifur

    2014-08-31

    Since the Energy Independence and Security Act of 2007 was enacted, there has been a large number of websites that discusses smart grid and relevant information, including those from government, academia, industry, private sector and regulatory. These websites collect information independently. Therefore, smart grid information was quite scattered and dispersed. The objective of this work was to develop, populate, manage and maintain the public Smart Grid Information Clearinghouse (SGIC) web portal. The information in the SGIC website is comprehensive that includes smart grid information, research & development, demonstration projects, technical standards, costs & benefit analyses, business cases, legislation, policy & regulation, and other information on lesson learned and best practices. The content in the SGIC website is logically grouped to allow easily browse, search and sort. In addition to providing the browse and search feature, the SGIC web portal also allow users to share their smart grid information with others though our online content submission platform. The Clearinghouse web portal, therefore, serves as the first stop shop for smart grid information that collects smart grid information in a non-bias, non-promotional manner and can provide a missing link from information sources to end users and better serve users’ needs. The web portal is available at www.sgiclearinghouse.org. This report summarizes the work performed during the course of the project (September 2009 – August 2014). Section 2.0 lists SGIC Advisory Committee and User Group members. Section 3.0 discusses SGIC information architecture and web-based database application functionalities. Section 4.0 summarizes SGIC features and functionalities, including its search, browse and sort capabilities, web portal social networking, online content submission platform and security measures implemented. Section 5.0 discusses SGIC web portal contents, including smart grid 101, smart grid projects, deployment experience (i.e., use cases, lessons learned, cost-benefit analyses and business cases), in-depth information (i.e., standards, technology, cyber security, legislation, education and training and demand response), as well as international information. Section 6.0 summarizes SGIC statistics from the launch of the portal on July 07, 2010 to August 31, 2014. Section 7.0 summarizes publicly available information as a result of this work.

  12. Grid Stiffened Structure Analysis Tool

    NASA Technical Reports Server (NTRS)

    1999-01-01

    The Grid Stiffened Analysis Tool contract is contract performed by Boeing under NASA purchase order H30249D. The contract calls for a "best effort" study comprised of two tasks: (1) Create documentation for a composite grid-stiffened structure analysis tool, in the form of a Microsoft EXCEL spread sheet, that was developed by originally at Stanford University and later further developed by the Air Force, and (2) Write a program that functions as a NASTRAN pre-processor to generate an FEM code for grid-stiffened structure. In performing this contract, Task 1 was given higher priority because it enables NASA to make efficient use of a unique tool they already have; Task 2 was proposed by Boeing because it also would be beneficial to the analysis of composite grid-stiffened structures, specifically in generating models for preliminary design studies. The contract is now complete, this package includes copies of the user's documentation for Task 1 and a CD ROM & diskette with an electronic copy of the user's documentation and an updated version of the "GRID 99" spreadsheet.

  13. POWER GRID RELIABILITY AND SECURITY

    SciTech Connect

    Bose, Anjan; Venkatasubramanian, Vaithianathan; Hauser, Carl; Bakken, David; Anderson, David; Zhao, Chuanlin; Liu, Dong; Yang, Tao; Meng, Ming; Zhang, Lin; Ning, Jiawei; Tashman, Zaid

    2014-09-30

    This project has led to the development of a real-time simulation platform for electric power grids called Grid Simulator or GridSim for simulating the dynamic and information network interactions of large- scale power systems. The platform consists of physical models of power system components including synchronous generators, loads and control, which are simulated using a modified commercial power simulator namely Transient Stability Analysis Tool (TSAT) [1] together with data cleanup components, as well as an emulated substation level and wide-area power analysis components. The platform also includes realistic representations of communication network middleware that can emulate the real-time information flow back and forth between substations and control centers in wide-area power systems. The platform has been validated on a realistic 6000-bus model of the western American power system. The simulator GridSim developed in this project is the first of its kind in its ability to simulate real-time response of large-scale power grids, and serves as a cost effective real-time stability and control simulation platform for power industry.

  14. Reputation, Princing and the E-Science Grid

    NASA Astrophysics Data System (ADS)

    Anandasivam, Arun; Neumann, Dirk

    One of the fundamental aspects for an efficient Grid usage is the optimization of resource allocation among the participants. However, this has not yet materialized. Each user is a self-interested participant trying to maximize his utility whereas the utility is not only determined by the fastest completion time, but on the prices as well. Future revenues are influenced by users' reputation. Reputation mechanisms help to build trust between loosely coupled and geographically distributed participants. Providers need an incentive to reduce selfish cancellation of jobs and privilege own jobs. In this chapter we present first an offline scheduling mechanism with a fixed price. Jobs are collected by a broker and scheduled to machines. The goal of the broker is to balance the load and to maximize the revenue in the network. Consumers can submit their jobs according to their preferences, but taking the incentives of the broker into account. This mechanism does not consider reputation. In a second step a reputation-based pricing mechanism for a simple, but fair pricing of resources is analyzed. In e-Science researchers do not appreciate idiosyncratic pricing strategies and policies. Their interest lies in doing research in an efficient manner. Consequently, in our mechanism the price is tightly coupled to the reputation of a site to guarantee fairness of pricing and facilitate price determination. Furthermore, the price is not the only parameter as completion time plays an important role, when deadlines have to be met. We provide a flexible utility and decision model for every participant and analyze the outcome of our reputation-based pricing system via simulation.

  15. TIGGERC: Turbomachinery Interactive Grid Generator for 2-D Grid Applications and Users Guide

    NASA Technical Reports Server (NTRS)

    Miller, David P.

    1994-01-01

    A two-dimensional multi-block grid generator has been developed for a new design and analysis system for studying multiple blade-row turbomachinery problems. TIGGERC is a mouse driven, interactive grid generation program which can be used to modify boundary coordinates and grid packing and generates surface grids using a hyperbolic tangent or algebraic distribution of grid points on the block boundaries. The interior points of each block grid are distributed using a transfinite interpolation approach. TIGGERC can generate a blocked axisymmetric H-grid, C-grid, I-grid or O-grid for studying turbomachinery flow problems. TIGGERC was developed for operation on Silicon Graphics workstations. Detailed discussion of the grid generation methodology, menu options, operational features and sample grid geometries are presented.

  16. The Vermont-Sandia Smart Grid Partnership Powering the Future: The Vermont Smart Grid and Beyond

    E-print Network

    Hayden, Nancy J.

    The Vermont-Sandia Smart Grid Partnership Powering the Future: The Vermont Smart Grid and Beyond BURLINGTON SHERATON HOTEL & CONFERENCE CENTER MAY Laboratories 9:10-10:15 a.m. Opening Plenary: The Vermont-Sandia Smart Grid

  17. 75 FR 63462 - Smart Grid Interoperability Standards; Notice of Docket Designation for Smart Grid...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-15

    ...Commission [Docket No. RM11-2-000] Smart Grid Interoperability Standards; Notice of Docket Designation for Smart Grid Interoperability Standards October...framework to achieve interoperability of smart grid devices and systems, including...

  18. Grids: The Top Ten Questions

    DOE PAGESBeta

    Schopf, Jennifer M.; Nitzberg, Bill

    2002-01-01

    The design and implementation of a national computing system and data grid has become a reachable goal from both the computer science and computational science point of view. A distributed infrastructure capable of sophisticated computational functions can bring many benefits to scientific work, but poses many challenges, both technical and socio-political. Technical challenges include having basic software tools, higher-level services, functioning and pervasive security, and standards, while socio-political issues include building a user community, adding incentives for sites to be part of a user-centric environment, and educating funding sources about the needs of this community. This paper details the areasmore »relating to Grid research that we feel still need to be addressed to fully leverage the advantages of the Grid.« less

  19. Grid-free compressive beamforming.

    PubMed

    Xenaki, Angeliki; Gerstoft, Peter

    2015-04-01

    The direction-of-arrival (DOA) estimation problem involves the localization of a few sources from a limited number of observations on an array of sensors, thus it can be formulated as a sparse signal reconstruction problem and solved efficiently with compressive sensing (CS) to achieve high-resolution imaging. On a discrete angular grid, the CS reconstruction degrades due to basis mismatch when the DOAs do not coincide with the angular directions on the grid. To overcome this limitation, a continuous formulation of the DOA problem is employed and an optimization procedure is introduced, which promotes sparsity on a continuous optimization variable. The DOA estimation problem with infinitely many unknowns, i.e., source locations and amplitudes, is solved over a few optimization variables with semidefinite programming. The grid-free CS reconstruction provides high-resolution imaging even with non-uniform arrays, single-snapshot data and under noisy conditions as demonstrated on experimental towed array data. PMID:25920844

  20. Interactive solution-adaptive grid generation

    NASA Technical Reports Server (NTRS)

    Choo, Yung K.; Henderson, Todd L.

    1992-01-01

    TURBO-AD is an interactive solution-adaptive grid generation program under development. The program combines an interactive algebraic grid generation technique and a solution-adaptive grid generation technique into a single interactive solution-adaptive grid generation package. The control point form uses a sparse collection of control points to algebraically generate a field grid. This technique provides local grid control capability and is well suited to interactive work due to its speed and efficiency. A mapping from the physical domain to a parametric domain was used to improve difficulties that had been encountered near outwardly concave boundaries in the control point technique. Therefore, all grid modifications are performed on a unit square in the parametric domain, and the new adapted grid in the parametric domain is then mapped back to the physical domain. The grid adaptation is achieved by first adapting the control points to a numerical solution in the parametric domain using control sources obtained from flow properties. Then a new modified grid is generated from the adapted control net. This solution-adaptive grid generation process is efficient because the number of control points is much less than the number of grid points and the generation of a new grid from the adapted control net is an efficient algebraic process. TURBO-AD provides the user with both local and global grid controls.

  1. GENI: Grid Hardware and Software

    SciTech Connect

    None

    2012-01-09

    GENI Project: The 15 projects in ARPA-E’s GENI program, short for “Green Electricity Network Integration,” aim to modernize the way electricity is transmitted in the U.S. through advances in hardware and software for the electric grid. These advances will improve the efficiency and reliability of electricity transmission, increase the amount of renewable energy the grid can utilize, and provide energy suppliers and consumers with greater control over their power flows in order to better manage peak power demand and cost.

  2. MediGRID: Towards a user friendly secured grid infrastructure

    Microsoft Academic Search

    Dagmar Krefting; Julian Bart; Kamen Beronov; Olga Dzhimova; Jürgen Falkner; Michael Hartung; Andreas Hoheisel; Tobias A. Knoch; Thomas Lingner; Yassene Mohammed; Kathrin Peter; Erhard Rahm; Ulrich Sax; Dietmar Sommerfeld; Thomas Steinke; Thomas Tolxdorff; Michal Vossberg; Fred Viezens; Anette Weisbecker

    2009-01-01

    Many scenarios in medical research are predestined for grid computing. Large amounts of data in complex medical image, biosignal and genome processing demand large computing power and data storage. Integration of distributed, heterogeneous data, e.g. correlation between phenotype and genotype data are playing an essential part in life sciences. Sharing of specialized software, data and processing results for collaborative work

  3. Grid Collector: Facilitating Efficient Selective Access from DataGrids

    SciTech Connect

    Wu, Kesheng; Gu, Junmin; Lauret, Jerome; Poskanzer, Arthur M.; Shoshani, Arie; Sim, Alexander; Zhang, Wei-Ming

    2005-05-17

    The Grid Collector is a system that facilitates the effective analysis and spontaneous exploration of scientific data. It combines an efficient indexing technology with a Grid file management technology to speed up common analysis jobs on high-energy physics data and to enable some previously impractical analysis jobs. To analyze a set of high-energy collision events, one typically specifies the files containing the events of interest, reads all the events in the files, and filters out unwanted ones. Since most analysis jobs filter out significant number of events, a considerable amount of time is wasted by reading the unwanted events. The Grid Collector removes this inefficiency by allowing users to specify more precisely what events are of interest and to read only the selected events. This speeds up most analysis jobs. In existing analysis frameworks, the responsibility of bringing files from tertiary storages or remote sites to local disks falls on the users. This forces most of analysis jobs to be performed at centralized computer facilities where commonly used files are kept on large shared file systems. The Grid Collector automates file management tasks and eliminates the labor-intensive manual file transfers. This makes it much easier to perform analyses that require data files on tertiary storages and remote sites. It also makes more computer resources available for analysis jobs since they are no longer bound to the centralized facilities.

  4. IGB grid: User's manual (A turbomachinery grid generation code)

    NASA Technical Reports Server (NTRS)

    Beach, T. A.; Hoffman, G.

    1992-01-01

    A grid generation code called IGB is presented for use in computational investigations of turbomachinery flowfields. It contains a combination of algebraic and elliptic techniques coded for use on an interactive graphics workstation. The instructions for use and a test case are included.

  5. DRAFT NISTIR 7628 Revision 1 Guidelines for Smart Grid Cybersecurity

    E-print Network

    DRAFT NISTIR 7628 Revision 1 Guidelines for Smart Grid Cybersecurity: Vol. 2, Privacy and the Smart Grid The Smart Grid Interoperability Panel ­ Smart Grid Cybersecurity Committee #12;DRAFT NISTIR 7628 Revision 1 Guidelines for Smart Grid Cybersecurity: Vol. 2, Privacy and the Smart Grid The Smart Grid

  6. Investigation of grid embedment techniques as applied to subcritical flow 

    E-print Network

    Watts, Michael E.

    1980-01-01

    CHAPTER III: COORDINATE SYSTEMS. Stretched Cartesian Grid. . . Embedded Cartesian Grid. . . . Embedded Body Fitted Grid. . CHAPTER IV: PROBLEM FORMULATION. Cartesian Coordinate System. . . . Body Fitted Coordinate System. . 12 12 13 CHAPTER V...: BOUNDARY CONDITIONS Cartesian Grids Embedded Body Fitted Grid. . 14 14 15 CHAPTER VI: FINITE DIFFERENCE SCHEMES. . . Stretched Cartesian System. . Embedded Cartesian Grid. . . . . Embedded Body Fitted Grid. . . CHAPTER VII: DISCUSSION OF RESULTS...

  7. Home visits to improve breast health knowledge and screening practices in a less privileged area in Jordan

    PubMed Central

    2014-01-01

    Background Breast cancer is the most common cancer afflicting women in Jordan. This study aimed to assess the effects of an educational intervention through home visits, including offering free mammography screening vouchers, on changing women’s breast health knowledge and screening practices for early detection of breast cancer in a less privileged area in Jordan. Methods Two thousand four hundred breast health awareness home visits were conducted and 2363 women aged 20-79 years (median: 41) answered a pre-test interview-administrated questionnaire to assess their breast health knowledge and practices at the baseline. After a home-based educational session, 625 women aged 40 years or older were referred to free mammography screening. Five hundred and ninety six homes were revisited six months later and out of these 593 women participated in a post-test. The women’s retained breast health knowledge, the changes in their reported breast health practices and their usage of the free mammography voucher, were assessed. Results The mean knowledge score increased significantly (p?privileged area in Jordan. PMID:24885063

  8. Characteristic expression of major histocompatibility complex and immune privilege genes in human pluripotent stem cells and their derivatives.

    PubMed

    Chen, Hsin-Fu; Yu, Chun-Ying; Chen, Mei-Jou; Chou, Shiu-Huey; Chiang, Ming-Shan; Chou, Wen-Hsi; Ko, Bor-Sheng; Huang, Hsiang-Po; Kuo, Hung-Chih; Ho, Hong-Nerng

    2015-01-01

    Pluripotent stem cells, including human embryonic stem cells (hESCs) and induced pluripotent stem cells (hiPSCs), have been regarded as useful sources for cell-based transplantation therapy. However, immunogenicity of the cells remains the major determinant for successful clinical application. We report the examination of several hESC lines (NTU1 and H9), hiPSC lines, and their derivatives (including stem cell-derived hepatocytes) for the expression of major histocompatibility complex (MHC), natural killer (NK) cell receptor (NKp30, NKp44, NKp46) ligand, immune-related genes, human leukocyte antigen (HLA) haplotyping, and the effects in functional mixed lymphocyte reaction (MLR). Flow cytometry showed lower levels (percentages and fluorescence intensities) of MHC class I (MHC-I) molecules, ?2-microglobulin, and HLA-E in undifferentiated stem cells. The levels were increased after cotreatment with interferon-? and/or in vitro differentiation. Antigen-presenting cell markers (CD11c, CD80, and CD86) and MHC-II (HLA-DP, -DQ, and -DR) remained low throughout the treatments. Recognition of stem cells/derivatives by NK lysis receptors were lower or absent. Activation of responder lymphocytes was significantly lower by undifferentiated stem cells than by allogeneic lymphocytes in MLR, but differentiated NTU1 hESCs induced a cell number-dependent lymphocyte proliferation comparable with that by allogeneic lymphocytes. Interestingly, activation of lymphocytes by differentiated hiPSCs or H9 cells became blunted at higher cell numbers. Real-time reverse transcriptase PCR (RT-PCR) showed significant differential expression of immune privilege genes (TGF-?2, Arginase 2, Indole 1, GATA3, POMC, VIP, CALCA, CALCB, IL-1RN, CD95L, CR1L, Serpine 1, HMOX1, IL6, LGALS3, HEBP1, THBS1, CD59, and LGALS1) in pluripotent stem cells/derivatives when compared to somatic cells. It was concluded that pluripotent stem cells/derivatives are predicted to be immunogenic, though evidence suggests some level of potential immune privilege. In addition, differential immunogenicity may exist between different pluripotent stem cell lines and their derivatives. PMID:24144439

  9. Grid Logging: Best Practices Guide

    SciTech Connect

    Tierney, Brian L; Tierney, Brian L; Gunter, Dan

    2008-04-01

    The purpose of this document is to help developers of Grid middleware and application software generate log files that will be useful to Grid administrators, users, developers and Grid middleware itself. Currently, most of the currently generated log files are only useful to the author of the program. Good logging practices are instrumental to performance analysis, problem diagnosis, and security auditing tasks such as incident tracing and damage assessment. This document does not discuss the issue of a logging API. It is assumed that a standard log API such as syslog (C), log4j (Java), or logger (Python) is being used. Other custom logging API or even printf could be used. The key point is that the logs must contain the required information in the required format. At a high level of abstraction, the best practices for Grid logging are: (1) Consistently structured, typed, log events; (2) A standard high-resolution timestamp; (3) Use of logging levels and categories to separate logs by detail and purpose; (4) Consistent use of global and local identifiers; and (5) Use of some regular, newline-delimited ASCII text format. The rest of this document describes each of these recommendations in detail.

  10. Smart Grid Communications System Blueprint

    NASA Astrophysics Data System (ADS)

    Clark, Adrian; Pavlovski, Chris

    2010-10-01

    Telecommunications operators are well versed in deploying 2G and 3G wireless networks. These networks presently support the mobile business user and/or retail consumer wishing to place conventional voice calls and data connections. The electrical power industry has recently commenced transformation of its distribution networks by deploying smart monitoring and control devices throughout their networks. This evolution of the network into a `smart grid' has also motivated the need to deploy wireless technologies that bridge the communication gap between the smart devices and information technology systems. The requirements of these networks differ from traditional wireless networks that communications operators have deployed, which have thus far forced energy companies to consider deploying their own wireless networks. We present our experience in deploying wireless networks to support the smart grid and highlight the key properties of these networks. These characteristics include application awareness, support for large numbers of simultaneous cell connections, high service coverage and prioritized routing of data. We also outline our target blueprint architecture that may be useful to the industry in building wireless and fixed networks to support the smart grid. By observing our experiences, telecommunications operators and equipment manufacturers will be able to augment their current networks and products in a way that accommodates the needs of the emerging industry of smart grids and intelligent electrical networks.

  11. Large databases on the GRID

    Microsoft Academic Search

    Fabrizio Furano

    2010-01-01

    In this talk, we address some general aspects of massive data access in the GRID environment, considering them from the point of view of some High Energy Physics experiences in large scale computing. These topics, despite of the angle from which we can consider them, are closely related to the general problem of accessing data in a massively distributed environment,

  12. Submeter navigation grid system concept

    Microsoft Academic Search

    John Dowdle; Karl Flueckiger

    2000-01-01

    This paper describes a concept for a system that provides the capability for accurate targeting and weapon delivery within a prescribed geographic context. This system, entitled submeter navigation grid, defines a geographic region that enables targeting platforms to perform relative navigation to the centimetre level. Ultimately, targeting information is delivered to an appropriate tactical platform, and the system enables precision

  13. Localization in Wireless Sensor Grids

    Microsoft Academic Search

    Chen Zhang; Ted Herman

    2006-01-01

    This work reports experiences on using radio ranging to position sensors in a grid topology. The implementation is simple, e-cient, and could be prac- tically distributed. The paper describes an implemen- tation and experimental result based on RSSI distance estimation. Novel techniques such as fuzzy member- ship functions and table lookup are used to obtain more accurate result and simplify

  14. Approximations to wire grid inductance.

    SciTech Connect

    Warne, Larry Kevin; Johnson, William Arthur; Merewether, Kimball O.

    2004-06-01

    By using a multipole-conformal mapping expansion for the wire currents we examine the accuracy of approximations for the transfer inductance of a one dimensional array of wires (wire grid). A simple uniform fit is constructed by introduction of the decay factor from bipolar coordinates into existing formulas for this inductance.

  15. Smart-Grid Security Issues

    Microsoft Academic Search

    Himanshu Khurana; Mark D. Hadley; Ning Lu; Deborah A. Frincke

    2010-01-01

    This article has given a broadbrush description of issues related to smart-grid security. Designing solutions in at this stage, before widespread deployment, would be beneficial; in some cases solutions exist, whereas in others research investments will be needed. Several open questions about goals still require discussion, especially around such topics as how (and how much) privacy can be supported.

  16. Information services for smart grids

    Microsoft Academic Search

    Roger L. King

    2008-01-01

    Interconnected and integrated electrical power systems, by their very dynamic nature are complex. These multifaceted systems are subject to a host of challenges - aging infrastructure, generation availability near load centers, transmission expansion to meet growing demands, distributed resources, dynamic reactive compensation, congestion management, grid ownership vs. system operation, reliability coordination, supply and cost of natural resources for generation, etc.

  17. Regular Grids for Global Optimization

    E-print Network

    2013-10-19

    8]; one important result there is that this algorithm has the best worst-case ... we give a simple characterization of the closest point on the grid with respect to a rather ..... Furthermore, we cannot have an index pair (i, j) ? [1:k] × [k +1:n] such that.

  18. Grid computing in image analysis

    PubMed Central

    2011-01-01

    Diagnostic surgical pathology or tissue–based diagnosis still remains the most reliable and specific diagnostic medical procedure. The development of whole slide scanners permits the creation of virtual slides and to work on so-called virtual microscopes. In addition to interactive work on virtual slides approaches have been reported that introduce automated virtual microscopy, which is composed of several tools focusing on quite different tasks. These include evaluation of image quality and image standardization, analysis of potential useful thresholds for object detection and identification (segmentation), dynamic segmentation procedures, adjustable magnification to optimize feature extraction, and texture analysis including image transformation and evaluation of elementary primitives. Grid technology seems to possess all features to efficiently target and control the specific tasks of image information and detection in order to obtain a detailed and accurate diagnosis. Grid technology is based upon so-called nodes that are linked together and share certain communication rules in using open standards. Their number and functionality can vary according to the needs of a specific user at a given point in time. When implementing automated virtual microscopy with Grid technology, all of the five different Grid functions have to be taken into account, namely 1) computation services, 2) data services, 3) application services, 4) information services, and 5) knowledge services. Although all mandatory tools of automated virtual microscopy can be implemented in a closed or standardized open system, Grid technology offers a new dimension to acquire, detect, classify, and distribute medical image information, and to assure quality in tissue–based diagnosis. PMID:21516880

  19. Spaceflight Operations Services Grid (SOSG)

    NASA Technical Reports Server (NTRS)

    Bradford, Robert N.; Thigpen, William W.

    2004-01-01

    In an effort to adapt existing space flight operations services to new emerging Grid technologies we are developing a Grid-based prototype space flight operations Grid. This prototype is based on the operational services being provided to the International Space Station's Payload operations located at the Marshall Space Flight Center, Alabama. The prototype services will be Grid or Web enabled and provided to four user communities through portal technology. Users will have the opportunity to assess the value and feasibility of Grid technologies to their specific areas or disciplines. In this presentation descriptions of the prototype development, User-based services, Grid-based services and status of the project will be presented. Expected benefits, findings and observations (if any) to date will also be discussed. The focus of the presentation will be on the project in general, status to date and future plans. The End-use services to be included in the prototype are voice, video, telemetry, commanding, collaboration tools and visualization among others. Security is addressed throughout the project and is being designed into the Grid technologies and standards development. The project is divided into three phases. Phase One establishes the baseline User-based services required for space flight operations listed above. Phase Two involves applying Gridlweb technologies to the User-based services and development of portals for access by users. Phase Three will allow NASA and end users to evaluate the services and determine the future of the technology as applied to space flight operational services. Although, Phase One, which includes the development of the quasi-operational User-based services of the prototype, development will be completed by March 2004, the application of Grid technologies to these services will have just begun. We will provide status of the Grid technologies to the individual User-based services. This effort will result in an extensible environment that incorporates existing and new spaceflight services into a standards-based framework providing current and future NASA programs with cost savings and new and evolvable methods to conduct science. This project will demonstrate how the use of new programming paradigms such as web and grid services can provide three significant benefits to the cost-effective delivery of spaceflight services. They will enable applications to operate more efficiently by being able to utilize pooled resources. They will also permit the reuse of common services to rapidly construct new and more powerful applications. Finally they will permit easy and secure access to services via a combination of grid and portal technology by a distributed user community consisting of NASA operations centers, scientists, the educational community and even the general population as outreach. The approach will be to deploy existing mission support applications such as the Telescience Resource Kit (TReK) and new applications under development, such as the Grid Video Distribution System (GViDS), together with existing grid applications and services such as high-performance computing and visualization services provided by NASA s Information Power Grid (IPG) in the MSFC s Payload Operations Integration Center (POIC) HOSC Annex. Once the initial applications have been moved to the grid, a process will begin to apply the new programming paradigms to integrate them where possible. For example, with GViDS, instead of viewing the Distribution service as an application that must run on a single node, the new approach is to build it such that it can be dispatched across a pool of resources in response to dynamic loads. To make this a reality, reusable services will be critical, such as a brokering service to locate appropriate resource within the pool. This brokering service can then be used by other applications such as the TReK. To expand further, if the GViDS application is constructed using a services-based mel, then other applications such as the Video Auditorium can then use GViDS as a service to easil

  20. Additional Security Considerations for Grid Management

    NASA Technical Reports Server (NTRS)

    Eidson, Thomas M.

    2003-01-01

    The use of Grid computing environments is growing in popularity. A Grid computing environment is primarily a wide area network that encompasses multiple local area networks, where some of the local area networks are managed by different organizations. A Grid computing environment also includes common interfaces for distributed computing software so that the heterogeneous set of machines that make up the Grid can be used more easily. The other key feature of a Grid is that the distributed computing software includes appropriate security technology. The focus of most Grid software is on the security involved with application execution, file transfers, and other remote computing procedures. However, there are other important security issues related to the management of a Grid and the users who use that Grid. This note discusses these additional security issues and makes several suggestions as how they can be managed.

  1. Past and future of grid shell structures

    E-print Network

    Paoli, Céline (Céline Aude)

    2007-01-01

    Because of their original organic shape and the column free space that they provide, the design of grid shell structures challenges architects and structural engineers in more than one way. Very few grid shell building ...

  2. The privilege to use lasers (non-ionizing radiation) at Stanford University requires each individual user to follow and adhere to the guidelines recommended in the American National Standard Institute

    E-print Network

    Kay, Mark A.

    Preface The privilege to use lasers (non-ionizing radiation) at Stanford recommended in the American National Standard Institute guidelines on laser safety for Safe Use of Lasers (ANSI Z136.1). All individuals who work with lasers

  3. Cutting edge: role of macrophage migration inhibitory factor in inhibiting NK cell activity and preserving immune privilege.

    PubMed

    Apte, R S; Sinha, D; Mayhew, E; Wistow, G J; Niederkorn, J Y

    1998-06-15

    The absence of MHC class I Ags on the corneal endothelium, which lines the anterior chamber of the eye, makes this cell layer potentially vulnerable to lysis by NK cells. However, aqueous humor (AH), which bathes the corneal endothelium, contains a 12-kDa protein which inhibits the NK-mediated lysis of corneal endothelial cells. An amino acid sequence analysis of AH revealed that this factor shared >90% homology with macrophage migration inhibitory factor (MIF). The NK inhibitory effect of AH was neutralized with anti-human MIF Ab. Moreover, mouse rMIF produced a similar inhibition of NK cell activity. However, neither rMIF nor AH inhibited the CTL-mediated Lysis of allogeneic cells. rMIF prevented the release of perforin granules by NK cells but not CTLs. Although MIF displays proinflammatory properties, these results indicate that it can also inhibit at least one immune effector element, NK cells, and thereby contribute to immune privilege in the eye. PMID:9637476

  4. Clustered distribution of natural product leads of drugs in the chemical space as influenced by the privileged target-sites.

    PubMed

    Tao, Lin; Zhu, Feng; Qin, Chu; Zhang, Cheng; Chen, Shangying; Zhang, Peng; Zhang, Cunlong; Tan, Chunyan; Gao, Chunmei; Chen, Zhe; Jiang, Yuyang; Chen, Yu Zong

    2015-01-01

    Some natural product leads of drugs (NPLDs) have been found to congregate in the chemical space. The extent, detailed patterns, and mechanisms of this congregation phenomenon have not been fully investigated and their usefulness for NPLD discovery needs to be more extensively tested. In this work, we generated and evaluated the distribution patterns of 442?NPLDs of 749 pre-2013 approved and 263 clinical trial small molecule drugs in the chemical space represented by the molecular scaffold and fingerprint trees of 137,836 non-redundant natural products. In the molecular scaffold trees, 62.7% approved and 37.4% clinical trial NPLDs congregate in 62 drug-productive scaffolds/scaffold-branches. In the molecular fingerprint tree, 82.5% approved and 63.0% clinical trial NPLDs are clustered in 60 drug-productive clusters (DCs) partly due to their preferential binding to 45 privileged target-site classes. The distribution patterns of the NPLDs are distinguished from those of the bioactive natural products. 11.7% of the NPLDs in these DCs have remote-similarity relationship with the nearest NPLD in their own DC. The majority of the new NPLDs emerge from preexisting DCs. The usefulness of the derived knowledge for NPLD discovery was demonstrated by the recognition of the new NPLDs of 2013-2014 approved drugs. PMID:25790752

  5. Gridded electron guns for high average power

    Microsoft Academic Search

    H. E. Gallagher

    1960-01-01

    A procedure for the design of a gridded converging beam electron gun is described. This procedure has been used to design several gridded guns in the perveance range of0.1 times 10^{-5}to2 times 10^{-6}. The characteristics of these gridded guns are compared with the design objectives. A method of calculating the grid control characteristics is developed. This-method utilizes charts compiled from

  6. A 100-element HBT grid amplifier

    Microsoft Academic Search

    Moonil Kim; Emilio A. Sovero; Jonathan B. Hacker; Michael P. De Lisio; Jung-Chih Chiao; Shi-Jie Li; David R. Gagnon; James J. Rosenberg; David B. Rutledge

    1993-01-01

    A 100-element 10-GHz grid amplifier has been developed. The active devices in the grid are chips with heterojunction-bipolar-transistor (HBT) differential pairs. The metal grid pattern was empirically designed to provide effective coupling between the HBTs and free space. Two independent measurements, one with focusing lenses and the other without, were used to characterize the grid. In each case, the peak

  7. Best Practices In Overset Grid Generation

    NASA Technical Reports Server (NTRS)

    Chan, William M.; Gomez, Reynaldo J., III; Rogers, Stuart E.; Buning, Pieter G.; Kwak, Dochan (Technical Monitor)

    2002-01-01

    Grid generation for overset grids on complex geometry can be divided into four main steps: geometry processing, surface grid generation, volume grid generation and domain connectivity. For each of these steps, the procedures currently practiced by experienced users are described. Typical problems encountered are also highlighted and discussed. Most of the guidelines are derived from experience on a variety of problems including space launch and return vehicles, subsonic transports with propulsion and high lift devices, supersonic vehicles, rotorcraft vehicles, and turbomachinery.

  8. Effect of Grid Geometry on Turbulence Decay

    Microsoft Academic Search

    Mahinder S. Uberoi; Stanley Wallis

    1967-01-01

    Longitudinal and lateral turbulence intensities u2 and v2 are measured behind homogeneous grids of various geometries. For all grids used, the ratio u2?v2 is essentially constant during decay and lies between 1.2 and 1.35, depending on the grid geometry. The turbulence intensity u2?t?n where n is constant during decay but depends on the grid geometry and varies from 1.22 to

  9. Survey of Security Challenges in Grid Environment

    Microsoft Academic Search

    Usman Ahmad Malik; Mureed Hussain; Mehnaz Hafeez; Sajjad Asghar

    \\u000a Use of grid systems has increased tremendously since their inception in 90’s. With grids, users execute the jobs without knowing\\u000a which resources will be used to run their jobs. An important aspect of grids is Virtual Organization (VO). VO is a group of\\u000a individuals, pursuing a common goal but under different administrative domains. Grids share large computational and storage\\u000a resource

  10. The National Grid Project: A system overview

    NASA Technical Reports Server (NTRS)

    Gaither, Adam; Gaither, Kelly; Jean, Brian; Remotigue, Michael; Whitmire, John; Soni, Bharat; Thompson, Joe; Dannenhoffer,, John; Weatherill, Nigel

    1995-01-01

    The National Grid Project (NGP) is a comprehensive numerical grid generation software system that is being developed at the National Science Foundation (NSF) Engineering Research Center (ERC) for Computational Field Simulation (CFS) at Mississippi State University (MSU). NGP is supported by a coalition of U.S. industries and federal laboratories. The objective of the NGP is to significantly decrease the amount of time it takes to generate a numerical grid for complex geometries and to increase the quality of these grids to enable computational field simulations for applications in industry. A geometric configuration can be discretized into grids (or meshes) that have two fundamental forms: structured and unstructured. Structured grids are formed by intersecting curvilinear coordinate lines and are composed of quadrilateral (2D) and hexahedral (3D) logically rectangular cells. The connectivity of a structured grid provides for trivial identification of neighboring points by incrementing coordinate indices. Unstructured grids are composed of cells of any shape (commonly triangles, quadrilaterals, tetrahedra and hexahedra), but do not have trivial identification of neighbors by incrementing an index. For unstructured grids, a set of points and an associated connectivity table is generated to define unstructured cell shapes and neighboring points. Hybrid grids are a combination of structured grids and unstructured grids. Chimera (overset) grids are intersecting or overlapping structured grids. The NGP system currently provides a user interface that integrates both 2D and 3D structured and unstructured grid generation, a solid modeling topology data management system, an internal Computer Aided Design (CAD) system based on Non-Uniform Rational B-Splines (NURBS), a journaling language, and a grid/solution visualization system.

  11. Reduction of Grid Effects Due to Local Sub-Gridding in Simulations Using a Composite Grid

    Microsoft Academic Search

    P. Quandalle; P. Besset

    1985-01-01

    Our previous paper described and analyzed the performance and some of the advantages obtained when a reservoir simulator is upgraded with: 1) the possibility of flow between any given grid blocks, especially from one to several blocks; 2) a multiple time step calculation. These improvements were appreciated by modelling engineers. The upgraded simulator was used for the simulation of actual

  12. Power grid complex network evolutions for the smart grid

    NASA Astrophysics Data System (ADS)

    Pagani, Giuliano Andrea; Aiello, Marco

    2014-02-01

    The shift towards an energy grid dominated by prosumers (consumers and producers of energy) will inevitably have repercussions on the electricity distribution infrastructure. Today the grid is a hierarchical one delivering energy from large scale facilities to end-users. Tomorrow it will be a capillary infrastructure at the medium and low voltage levels that will support local energy trading among prosumers. We investigate how different network topologies and growth models facilitate a more efficient and reliable network, and how they can facilitate the emergence of a decentralized electricity market. We show how connectivity plays an important role in improving the properties of reliability and path-cost reduction. Our results indicate that a specific type of evolution balances best the ratio between increased connectivity and costs to achieve the network growth.

  13. TTN: Towards Trust Negotiation for Grid Systems

    Microsoft Academic Search

    Junwei Huo; Tingtang Ming; Hao Xu

    2009-01-01

    Trust management and trust negotiation are prevailing approaches for establishing trust relationship in grid-based systems across security domains and inter-domains. In this paper, we propose TTN, a combining trust management with trust negotiation mechanism which provides the authorization and access control for the Scientific Data Grid and aims to enhance the grid security. The framework takes into account all aspects

  14. A Unified management system for Smart Grid

    Microsoft Academic Search

    Nampuraja Enose

    2011-01-01

    Smart Grid is seeing one of the largest implementation of Communication infrastructure in the power utilities. The basic component that makes the Smart Grid work is this underlying robust information & communication technologies (ICT), which enables shared understanding between each of the complex systems in the grid. Traditionally utilities have implemented operations technology (OT) independently of information technology (IT). However

  15. Multiprocessor computer overset grid method and apparatus

    DOEpatents

    Barnette, Daniel W. (Veguita, NM); Ober, Curtis C. (Los Lunas, NM)

    2003-01-01

    A multiprocessor computer overset grid method and apparatus comprises associating points in each overset grid with processors and using mapped interpolation transformations to communicate intermediate values between processors assigned base and target points of the interpolation transformations. The method allows a multiprocessor computer to operate with effective load balance on overset grid applications.

  16. Grid Services for Earthquake Science Geoffrey Fox

    E-print Network

    University Abstract We describe an information system architecture for the ACES (Asia-Pacific Cooperation and searched in this form. The various capabilities needed by ACES are defined as Grid Services, which interactions between scientists in geographically distant locations. 1. ACES Grid and .opennet Grid

  17. Computer Simulaton of the UMER Gridded Gun

    Microsoft Academic Search

    I. Haber; S. Bernal; R. A. Kishek; P. G. O'Shea; M. Reiser; Y. Zou; A. Friedman; D. P. Grote; J.-L. Vay

    2005-01-01

    The electron source in the University of Maryland Electron Ring (UMER) injector employs a grid 0.15 mm from the cathode to control the current waveform. Under nominal operating conditions, the grid voltage during the current pulse is sufficiently positive relative to the cathode potential to form a virtual cathode downstream of the grid. Three-dimensional computer simulations have been performed that

  18. Avoiding Differences Spanning Trees in Grid Graphs

    E-print Network

    Zeilberger, Doron

    Avoiding Differences Spanning Trees in Grid Graphs The Firefighter Problem Automated Proof and Discovery #12;Avoiding Differences Spanning Trees in Grid Graphs The Firefighter Problem Automated Proof and Discovery #12;Avoiding Differences Spanning Trees in Grid Graphs The Firefighter Problem Outline 1 Avoiding

  19. Monitoring and Analysis Framework for Grid Middleware

    Microsoft Academic Search

    Ramon Nou; Ferran Julià; David Carrera; Kevin Hogan; Jordi Caubet; Jesús Labarta; Jordi Torres

    2007-01-01

    As the use of complex grid middleware becomes widespread and more facilites are offered by these pieces of software, distributed Grid applications are becoming more and more popular. But as Grid middleware grows in size and offers more advanced features, they become more com- plex and heavier, as well as harder to tune. Since the per- formance of a distributed

  20. Benchmarking Grid Information Systems Laurence Field1

    E-print Network

    Sakellariou, Rizos

    Benchmarking Grid Information Systems Laurence Field1 and Rizos Sakellariou2 1 CERN, Geneva. Grid information systems play a central role in today's pro- duction Grid infrastructures, enabling information systems mainly focus on performance metrics and do not consider the quality of the information

  1. Distributed computing research issues in grid computing

    Microsoft Academic Search

    Henri Casanova

    2002-01-01

    Ensembles of distributed, heterogeneous resources, or Computational Grids, have emerged as popular platforms for deploying large-scale and resource-intensive applications. Large collaborative efforts are currently underway to provide the necessary software infrastructure. Grid computing raises challenging issues in many areas of computer science, and especially in the area of distributed computing, as Computational Grids cover increasingly large networks and span many

  2. Optimal Placement of Pipeline Applications on Grid

    Microsoft Academic Search

    Sudsanguan Ngamsuriyaroj; Ekasit Kijsipongse

    2008-01-01

    Computation and communication intensive applications such as scientific data analysis and data visualization are commonly found in grid computing environment.These applications can be divided into a sequence of pipeline stages which could be executed concurrently on different grid resources to achieve high performance. Finding the optimal placement of pipeline stages on grid is a difficult problem due to the aggregation

  3. Contemporary Mathematics Three-Dimensional Grid Drawings

    E-print Network

    Wood, David R.

    Contemporary Mathematics Three-Dimensional Grid Drawings with Sub-Quadratic Volume Vida Dujmovi´c and David R. Wood Abstract. A three-dimensional grid drawing of a graph is a placement of the vertices are pairwise non-crossing. A O(n3/2) volume bound is proved for three-dimensional grid drawings of graphs

  4. Contemporary Mathematics Three-Dimensional Grid Drawings

    E-print Network

    Wood, David R.

    Contemporary Mathematics Three-Dimensional Grid Drawings with Sub-Quadratic Volume Vida Dujmovi#19;c and David R. Wood Abstract. A three-dimensional grid drawing of a graph is a placement the edges are pairwise non-crossing. A O(n 3=2 ) volume bound is proved for three-dimensional grid drawings

  5. Semantic Information Integration for Smart Grid Applications*

    E-print Network

    Prasanna, Viktor K.

    Chapter 19 Semantic Information Integration for Smart Grid Applications* Yogesh Simmhan, Qunzhi Zhou, and Viktor Prasanna* Abstract. The Los Angeles Smart Grid Project aims to use informatics that supports 1.4 million customers and a rich ecosystem of Smart Grid applications from users, third party

  6. A Conceptual Framework for Smart Grid

    Microsoft Academic Search

    Chengbing Wei

    2010-01-01

    Smart grid is a relatively new term that refers to the application of information technology to power systems. Due to the complexity of such systems,the possibilities have yet to be clearly defined. In this paper, it gives the structure of the smart grid and summarizes five features for the smart grid such as self-healing, interactive, optimization, compatibility, integration and the

  7. Cyber Security in Smart Grid Substations

    E-print Network

    Utrecht, Universiteit

    Cyber Security in Smart Grid Substations Thijs Baars Lucas van den Bemd Michail Theuns Robin van.089 3508 TB Utrecht The Netherlands #12;CYBER SECURITY IN SMART GRID SUBSTATIONS Thijs Baars T.Brinkkemper@uu.nl Abstract. This report describes the state of smart grid security in Europe, specifically the Netherlands

  8. New uniform grids on the sphere

    Microsoft Academic Search

    D. Rosca

    2010-01-01

    Aims: A method for constructing new uniform grids on the sphere is given. Methods: We define a bijection in R2, which maps squares onto discs and preserves areas. Then we use this bijection, combined with Lambert azimuthal projection, for lifting uniform grids from the square to the sphere. Results: We can obtain uniform spherical grids that allow a hierarchical data

  9. Networks, Grids and Future of ICT

    E-print Network

    Chen, Yang-Yuan

    a form of Grid Computing · It is often associated with collections ofVirtual machines, aiming at 100;Induction: What are Grids and e-Science? ­May 18th, 2004 - 17 Exponential Growth World Gilder's Law (32X;Induction: What are Grids and e-Science? ­May 18th, 2004 - 17 Exponential Growth World Gilder's Law (32X

  10. Energy efficient buildings facilitated by micro grid

    Microsoft Academic Search

    Xiaohong Guan; Zhanbo Xu; Qingshan Jia

    2010-01-01

    Micro smart grid technology provides a desirable infrastructure for energy efficient buildings. In additional to the power source from the grid, a micro grid for buildings may contain autonomous power generators possibly CHP, renewable energy resources such as PV solar cells, power storage devices and system loads including HVAC systems, lighting equipment, IT data centers, etc. With support of a

  11. "Reliability, Resiliency, and Restoration for Smarter Grid

    E-print Network

    Ohta, Shigemi

    at mohlsen@bnl.gov "The Resilient Smart Grid" to be held at Brookhaven National Laboratory Upton, Long Island://www.bnl.gov/maps/. This is the 5th workshop that BNL is hosting on the Smart Grid. This Workshop will build on the previous workshop held April 2014, "The Resilient Smart Grid Customer," and the workshops prior. This workshop

  12. Efficient Bidding in Dynamic Grid Markets

    Microsoft Academic Search

    Amir Danak; Shie Mannor

    2011-01-01

    We analyze rational strategies of users in a dynamic grid market. We consider efficient usage of the shared resources in modeling users' preference relations, an objective that prevents congestion and consequently the collapse of the grid system. A repeated auction-based allocation protocol is presented for sharing the computational grid resources. We present a utility-maximizing bidding algorithm and illustrate the transient

  13. RSA-grid: a grid computing based framework for power system reliability and security analysis

    Microsoft Academic Search

    M. Ali; Z. Y. Dong; X. Li; P. Zhang

    2006-01-01

    Grid computing is an emerging technology for providing the high performance computing capability and collaboration mechanism for solving the collaborated and complex problems while using the existing resources. In this paper, a grid computing based framework is proposed for the probabilistic based power system reliability and security analysis. The suggested name of this computing grid is reliability and security grid

  14. A Grid Service Broker for Scheduling Distributed Data-Oriented Applications on Global Grids

    E-print Network

    Melbourne, University of

    -enabling a high energy physics analysis application (Belle Analysis Software Framework) on a grid testbed having, scientific instruments, databases and applications. Grid computing [11] enables aggregation and sharing1 A Grid Service Broker for Scheduling Distributed Data-Oriented Applications on Global Grids

  15. Semantic-based Grid Resource Discovery and its Integration with the Grid Service Broker

    Microsoft Academic Search

    Thamarai Selvi Somasundaram; R. A. Balachandar; Vijayakumar Kandasamy; Rajkumar Buyya; Rajagopalan Raman; N. Mohanram; S. Varun

    2006-01-01

    This paper addresses the need of semantic component in the grid environment to discover and describe the grid resources semantically. We propose semantic grid architecture by introducing a knowledge layer at the top of Gridbus broker architecture and thereby enabling broker to discover resources semantically. The semantic component in the knowledge layer enables semantic description of grid resources with the

  16. Modeling and Grid impedance Variation Analysis of Parallel Connected Grid Connected Inverter

    E-print Network

    Bak, Claus Leth

    Modeling and Grid impedance Variation Analysis of Parallel Connected Grid Connected Inverter based - This paper addresses the harmonic compensation error problem existing with parallel connected inverter grid connected inverter, it is found that multiple parallel connected inverters and grid impedance can

  17. EL Program: Smart Grid Program Manager: David Wollman, Smart Grid and Cyber-Physical Systems

    E-print Network

    EL Program: Smart Grid Program Manager: David Wollman, Smart Grid and Cyber-Physical Systems Program Office, Associate Program Manager: Dean Prochaska, Smart Grid and Cyber- Physical Systems Program [updated August 23, 2013] Summary: This program develops and demonstrates smart grid measurement science

  18. GridDeploy: A Toolkit for Deploying Applications as Grid Services

    Microsoft Academic Search

    Zhijie Guan; Vijay Velusamy; Purushotham Bangalore

    2005-01-01

    In Grid computing environments it is common practice to use grid middleware as the intermediate layer between end user\\/application and existing functionalities available on the resources. The purpose of this paper is to introduce GridDeploy, a toolkit for automatically deploying programs as Grid services and providing the necessary infrastructure for users' applications to invoke these services directly and transparently. Two

  19. An adaptive grid method for computing time accurate solutions on structured grids

    NASA Technical Reports Server (NTRS)

    Bockelie, Michael J.; Smith, Robert E.; Eiseman, Peter R.

    1991-01-01

    The solution method consists of three parts: a grid movement scheme; an unsteady Euler equation solver; and a temporal coupling routine that links the dynamic grid to the Euler solver. The grid movement scheme is an algebraic method containing grid controls that generate a smooth grid that resolves the severe solution gradients and the sharp transitions in the solution gradients. The temporal coupling is performed with a grid prediction correction procedure that is simple to implement and provides a grid that does not lag the solution in time. The adaptive solution method is tested by computing the unsteady inviscid solutions for a one dimensional shock tube and a two dimensional shock vortex iteraction.

  20. Cyber-Physical Systems Security for Smart Grid

    E-print Network

    Cyber-Physical Systems Security for Smart Grid Future Grid Initiative White Paper Power Systems-Physical Systems Security for Smart Grid Prepared for the Project "The Future Grid to Enable Sustainable Energy

  1. 75 FR 6414 - Consumer Interface With the Smart Grid

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-09

    ...POLICY Consumer Interface With the Smart Grid AGENCY: Office of Science and Technology...the modernized electric grid (``Smart Grid''), which is a vital component...seek comments on issues related to Smart Grid implementation options,...

  2. Grid Computing for Disaster Mitigation

    NASA Astrophysics Data System (ADS)

    Koh, Hock Lye; Teh, Su Yean; Majid, Taksiah A.; Aziz, Hamidi Abdul

    The infamous 2004 Andaman tsunami has highlighted the need to be prepared and to be resilient to such disasters. Further, recent episodes of infectious disease epidemics worldwide underline the urgency to control and manage infectious diseases. Universiti Sains Malaysia (USM) has recently formed the Disaster Research Nexus (DRN) within the School of Civil Engineering to spearhead research and development in natural disaster mitigation programs to mitigate the adverse effects of natural disasters. This paper presents a brief exposition on the aspirations of DRN towards achieving resilience in communities affected by these natural disasters. A brief review of the simulations of the 2004 Andaman tsunami, with grid application is presented. Finally, the application of grid technology in large scale simulations of disease transmission dynamics is discussed.

  3. MyGridFTP: A Zero-Deployment GridFTP Client Using the .NET Framework

    Microsoft Academic Search

    Arumugam Paventhan; Kenji Takeda

    2005-01-01

    \\u000a Large-scale scientific and engineering applications are increasingly being hosted as Grid services using Globus middleware\\u000a complying to the Open Grid Services Architecture (OGSA) framework. In order for users to fully embrace Grid applications,\\u000a seamless access to Grid services is required. In working towards this aim we present the design and implementation of Grid\\u000a clients that utilise the language-independent Microsoft .NET

  4. caGrid 1.0 : an enterprise Grid infrastructure for biomedical research

    Microsoft Academic Search

    S. Oster; S. Langella; S. Hastings; D. Ervin; R. Madduri; J. Phillips; T. Kurc; F. Siebenlist; P. Covitz; K. Shanbhag; I. Foster; J. Saltz; SemanticBits

    2008-01-01

    To develop software infrastructure that will provide support for discovery, characterization, integrated access, and management of diverse and disparate collections of information sources, analysis methods, and applications in biomedical research. Design: An enterprise Grid software infrastructure, called caGrid version 1.0 (caGrid 1.0), has been developed as the core Grid architecture of the NCI-sponsored cancer Biomedical Informatics Grid (caBIG{trademark}) program. It

  5. Numerical integration using sparse grids

    Microsoft Academic Search

    Thomas Gerstner; Michael Griebel

    1998-01-01

    We present new and review existing algorithms for the numerical integration of multivariate functions defined over d-dimensional cubes using several variants of the sparse grid method first introduced by Smolyak [49]. In this approach, multivariate\\u000a quadrature formulas are constructed using combinations of tensor products of suitable one-dimensional formulas. The computing\\u000a cost is almost independent of the dimension of the problem

  6. Torus Grid Graph Kneser Graph

    E-print Network

    ,3) Torus Grid Graph {1,4} {3,4} {1,2} {2,5} {2,4} {2,3} {1,5} {4,5} {1,3} {3,5} Kneser Graph Considered the cheapest edge, {8, 9}. with weight 76 New Features of the GraphTheory Package Animations for Prim's and Kruskal's Algorithms Below we show some key frames from the commands: > G:=AntiPrismGraph(5,2): > G

  7. Transdisciplinary electric power grid science

    E-print Network

    Brummitt, Charles D; Dobson, Ian; Moore, Cristopher; D'Souza, Raissa M

    2013-01-01

    The 20th-century engineering feat that most improved the quality of human life, the electric power system, now faces discipline-spanning challenges that threaten that distinction. So multilayered and complex that they resemble ecosystems, power grids face risks from their interdependent cyber, physical, social and economic layers. Only with a holistic understanding of the dynamics of electricity infrastructure and human operators, automatic controls, electricity markets, weather, climate and policy can we fortify worldwide access to electricity.

  8. Building the International Lattice Data Grid

    SciTech Connect

    Mark G. Beckett, Paul Coddington, Bálint Joó, Chris M. Maynard, Dirk Pleiter, Osamu Tatebe, Tomoteru Yoshie

    2011-06-01

    We present the International Lattice Data Grid (ILDG), a loosely federated grid-of-grids for sharing data from Lattice Quantum Chromodynamics (LQCD) simulations. The ILDG comprises of metadata, file-format and web-service standards, which can be used to wrap regional data-grid interfaces, allowing seamless access to catalogues and data in a diverse set of collaborating regional grids. We discuss the technological underpinnings of the ILDG, primarily the metadata and the middleware, and offer a critique of its various aspects with the hindsight of the design work and the two years of production.

  9. New uniform grids on the sphere

    NASA Astrophysics Data System (ADS)

    Ro?ca, D.

    2010-09-01

    Aims: A method for constructing new uniform grids on the sphere is given. Methods: We define a bijection in R2, which maps squares onto discs and preserves areas. Then we use this bijection, combined with Lambert azimuthal projection, for lifting uniform grids from the square to the sphere. Results: We can obtain uniform spherical grids that allow a hierarchical data manipulation and have an isolatitudinal distribution of cells. Compared with HEALPix grids, nowadays the most used in astronomy and astrophysics, our grids have the advantage of allowing easier implementation, and in addition one can move approximating functions from the square to the sphere by a simple technique.

  10. Building the International Lattice Data Grid

    E-print Network

    G. Beckett; B. Joo; C. M. Maynard; D. Pleiter; O. Tatebe; T. Yoshie

    2009-10-09

    We present the International Lattice Data Grid (ILDG), a loosely federated grid of grids for sharing data from Lattice Quantum Chromodynamics (LQCD) simulations. The ILDG comprises of metadata, file format and web-service standards, which can be used to wrap regional data-grid interfaces, allowing seamless access to catalogues and data in a diverse set of collaborating regional grids. We discuss the technological underpinnings of the ILDG, primarily the metadata and the middleware, and offer a critique of its various aspects with the hindsight of the design work and the first full year of production.

  11. Smart Grid Interoperability Maturity Model

    SciTech Connect

    Widergren, Steven E.; Levinson, Alex; Mater, J.; Drummond, R.

    2010-04-28

    The integration of automation associated with electricity resources (including transmission and distribution automation and demand-side resources operated by end-users) is key to supporting greater efficiencies and incorporating variable renewable resources and electric vehicles into the power system. The integration problems faced by this community are analogous to those faced in the health industry, emergency services, and other complex communities with many stakeholders. To highlight this issue and encourage communication and the development of a smart grid interoperability community, the GridWise Architecture Council (GWAC) created an Interoperability Context-Setting Framework. This "conceptual model" has been helpful to explain the importance of organizational alignment in addition to technical and informational interface specifications for "smart grid" devices and systems. As a next step to building a community sensitive to interoperability, the GWAC is investigating an interoperability maturity model (IMM) based on work done by others to address similar circumstances. The objective is to create a tool or set of tools that encourages a culture of interoperability in this emerging community. The tools would measure status and progress, analyze gaps, and prioritize efforts to improve the situation.

  12. GridMol: a grid application for molecular modeling and visualization.

    PubMed

    Sun, Yanhua; Shen, Bin; Lu, Zhonghua; Jin, Zhong; Chi, Xuebin

    2008-02-01

    In this paper we present GridMol, an extensible tool for building a high performance computational chemistry platform in the grid environment. GridMol provides computational chemists one-stop service for molecular modeling, scientific computing and molecular information visualization. GridMol is not only a visualization and modeling tool but also simplifies control of remote Grid software that can access high performance computing resources. GridMol has been successfully integrated into China National Grid, the most powerful Chinese Grid Computing platform. In Section "Grid computing" of this paper, a computing example is given to show the availability and efficiency of GridMol. GridMol is coded using Java and Java3D for portability and cross-platform compatibility (Windows, Linux, MacOS X and UNIX). GridMol can run not only as a stand-alone application, but also as an applet through web browsers. In this paper, we will present the techniques for molecular visualization, molecular modeling and grid computing. GridMol is available free of charge under the GNU Public License (GPL) from our website: http://www.sccas.cn/~syh/GridMol/index.html. PMID:18231861

  13. ECE 437/537 -Smart Grid Catalog Description: Fundamentals of smart power grids. Technology advances in transmission

    E-print Network

    ECE 437/537 - Smart Grid Catalog Description: Fundamentals of smart power grids. Technology advances in transmission and distribution systems. Policy drivers. Assets and demand management. Smart grid measurement units. · Distribution systems. · Smart grid monitoring and communications. · Asset management

  14. Solving Partial Differential Equations on Overlapping Grids

    SciTech Connect

    Henshaw, W D

    2008-09-22

    We discuss the solution of partial differential equations (PDEs) on overlapping grids. This is a powerful technique for efficiently solving problems in complex, possibly moving, geometry. An overlapping grid consists of a set of structured grids that overlap and cover the computational domain. By allowing the grids to overlap, grids for complex geometries can be more easily constructed. The overlapping grid approach can also be used to remove coordinate singularities by, for example, covering a sphere with two or more patches. We describe the application of the overlapping grid approach to a variety of different problems. These include the solution of incompressible fluid flows with moving and deforming geometry, the solution of high-speed compressible reactive flow with rigid bodies using adaptive mesh refinement (AMR), and the solution of the time-domain Maxwell's equations of electromagnetism.

  15. Interactive grid generation for fighter aircraft geometries

    NASA Technical Reports Server (NTRS)

    Smith, Robert E.; Everton, Eric L.

    1988-01-01

    An interactive procedure to construct grids about fighter aircraft configurations using a 'state-of-the-art' workstation is described. A multiple-block grid topology is used to minimize grid skewness. Grid points on the surface of a configuration are precomputed and stored on the faces of appropriate blocks. Grid points at intermediate and far field boundary surfaces are computed with analytical functions and stored on appropriate faces. Grid points in the interior of blocks are computed using transfinite interpolation with Lagrangian and exponential blending functions. Interactive software has been written for the IRIS 3030 graphics workstation to control the shape and spacing of grid points on intermediate and far field boundaries, and to control the interior interpolation.

  16. Globally Gridded Satellite (GridSat) Observations for Climate Studies

    NASA Technical Reports Server (NTRS)

    Knapp, Kenneth R.; Ansari, Steve; Bain, Caroline L.; Bourassa, Mark A.; Dickinson, Michael J.; Funk, Chris; Helms, Chip N.; Hennon, Christopher C.; Holmes, Christopher D.; Huffman, George J.; Kossin, James P.; Lee, Hai-Tien; Loew, Alexander; Magnusdottir, Gudrun

    2012-01-01

    Geostationary satellites have provided routine, high temporal resolution Earth observations since the 1970s. Despite the long period of record, use of these data in climate studies has been limited for numerous reasons, among them: there is no central archive of geostationary data for all international satellites, full temporal and spatial resolution data are voluminous, and diverse calibration and navigation formats encumber the uniform processing needed for multi-satellite climate studies. The International Satellite Cloud Climatology Project set the stage for overcoming these issues by archiving a subset of the full resolution geostationary data at approx.10 km resolution at 3 hourly intervals since 1983. Recent efforts at NOAA s National Climatic Data Center to provide convenient access to these data include remapping the data to a standard map projection, recalibrating the data to optimize temporal homogeneity, extending the record of observations back to 1980, and reformatting the data for broad public distribution. The Gridded Satellite (GridSat) dataset includes observations from the visible, infrared window, and infrared water vapor channels. Data are stored in the netCDF format using standards that permit a wide variety of tools and libraries to quickly and easily process the data. A novel data layering approach, together with appropriate satellite and file metadata, allows users to access GridSat data at varying levels of complexity based on their needs. The result is a climate data record already in use by the meteorological community. Examples include reanalysis of tropical cyclones, studies of global precipitation, and detection and tracking of the intertropical convergence zone.

  17. Survey of Volumetric Grid Generators

    NASA Technical Reports Server (NTRS)

    Woo, Alex; Volakis, John; Hulbert, Greg; Case, Jeff; Presley, Leroy L. (Technical Monitor)

    1994-01-01

    This document is the result of an Internet Survey of Volumetric grid generators. As such we have included information from only the responses which were sent to us. After the initial publication and posting of this survey, we would encourage authors and users of grid generators to send further information. Here is the initial query posted to SIGGRID@nas and the USENET group sci.physics.computational.fluid-dynamics. Date: Sun, 30 Jan 94 11:37:52 -0800 From: woo (Alex Woo x6010 227-6 rm 315) Subject: Info Sought for Survey of Grid Generators I am collecting information and reviews of both government sponsored and commercial mesh generators for large scientific calculations, both block structured and unstructured. If you send me a review of a mesh generator, please indicate its availability and cost. If you are a commercial concern with information on a product, please also include references for possible reviewers. Please email to woo@ra-next.arc.nasa.gov. I will post a summary and probably write a short note for the IEEE Antennas and Propagation Magazine. Alex Woo, MS 227-6 woo@ames.arc.nasa.gov NASA Ames Research Center NASAMAIL ACWOO Moffett Field, CA 94035-1000 SPANET 24582::W00 (415) 604-6010 (FAX) 604-4357 fhplabs,decwrl,uunet)!ames!woo Disclaimer: These are not official statements of NASA or EMCC. We did not include all the submitted text here. Instead we have created a database entry in the freely available and widely used BIBTeX format which has an Uniform Resource Locator (URL) field pointing to more details. The BIBTeX database is modeled after those available from the BIBNET project at University of Utah.

  18. Vortex wandering in grid turbulence

    NASA Astrophysics Data System (ADS)

    Pentelow, Steffen; Tavoularis, Stavros

    2013-11-01

    The tip vortex of a square-tipped NACA 0012 wing at an angle of attack of 5° was investigated in a water tunnel. The chord length was c = 180 mm and the chord-based Reynolds number was 25000. Cases with three free-stream conditions were examined: unobstructed flow with a transverse fluctuation intensity (in the free-stream at the wing-tip plane) u2' /U? = 2 . 3 % ``small-grid'' turbulence with u2' /U? = 3 . 5 % and a transverse integral length scale L2 = 0 . 063 c ; and ``large-grid'' turbulence with u2' /U? = 5 . 3 % and L2 = 0 . 078 c . Velocity maps were obtained on several transverse planes using stereo particle image velocimetry and three-dimensional, time-dependent vortex wandering was resolved using flow visualisation of fluorescent dye injected into the vortex at the wing tip. The results quantify the effect of turbulence on the amplitude, frequency and wavelength of the vortex wandering motion, as well as on the axial and azimuthal velocity variations within the vortex. The tip vortex of a square-tipped NACA 0012 wing at an angle of attack of 5° was investigated in a water tunnel. The chord length was c = 180 mm and the chord-based Reynolds number was 25000. Cases with three free-stream conditions were examined: unobstructed flow with a transverse fluctuation intensity (in the free-stream at the wing-tip plane) u2' /U? = 2 . 3 % ``small-grid'' turbulence with u2' /U? = 3 . 5 % and a transverse integral length scale L2 = 0 . 063 c ; and ``large-grid'' turbulence with u2' /U? = 5 . 3 % and L2 = 0 . 078 c . Velocity maps were obtained on several transverse planes using stereo particle image velocimetry and three-dimensional, time-dependent vortex wandering was resolved using flow visualisation of fluorescent dye injected into the vortex at the wing tip. The results quantify the effect of turbulence on the amplitude, frequency and wavelength of the vortex wandering motion, as well as on the axial and azimuthal velocity variations within the vortex. Supported by NSERC.

  19. Mapping on the HEALPix grid

    E-print Network

    Calabretta, M R

    2004-01-01

    The natural spherical projection associated with the Hierarchical Equal Area and isoLatitude Pixelisation, HEALPix, is described and shown to be one of an infinite class not previously documented in the cartographic literature. Projection equations are derived for the class in general and it is shown that the HEALPix projection suggests a simple method (a) of storing, and (b) visualising data sampled on the grid of the HEALPix pixelisation, and also suggests an extension of the pixelisation that is better suited for these purposes. Potentially useful properties of other members of the class are described. Finally, the formalism is defined for representing any member of the class in the FITS data format.

  20. Mapping on the HEALPix grid

    E-print Network

    M. R. Calabretta

    2004-12-23

    The natural spherical projection associated with the Hierarchical Equal Area and isoLatitude Pixelisation, HEALPix, is described and shown to be one of an infinite class not previously documented in the cartographic literature. Projection equations are derived for the class in general and it is shown that the HEALPix projection suggests a simple method (a) of storing, and (b) visualising data sampled on the grid of the HEALPix pixelisation, and also suggests an extension of the pixelisation that is better suited for these purposes. Potentially useful properties of other members of the class are described. Finally, the formalism is defined for representing any member of the class in the FITS data format.